{"id":9622,"date":"2023-12-13T12:31:32","date_gmt":"2023-12-13T17:31:32","guid":{"rendered":"http:\/\/www.espressoenglish.net\/?p=9622"},"modified":"2024-07-16T14:19:37","modified_gmt":"2024-07-16T19:19:37","slug":"irregular-plurals-of-english-nouns","status":"publish","type":"post","link":"https:\/\/www.espressoenglish.net\/irregular-plurals-of-english-nouns\/","title":{"rendered":"50+ Irregular Plural Nouns in English"},"content":{"rendered":"<p><center><iframe loading=\"lazy\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/Sd3YNh8i4lI?si=wSvKahTOja_G6gyf?rel=0\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/center><br \/>\nLet&#8217;s learn 50 irregular plural nouns &#8211; these are nouns that don\u2019t follow the normal rules for forming plurals! Even a lot of native English speakers aren\u2019t sure about how to make the plural forms of these words. When you learn them, you can avoid mistakes and then be confident that your English is correct.<\/p>\n<p>Let\u2019s quickly review how we form regular plural nouns, and then we\u2019ll get to the irregular ones and more complicated cases.<\/p>\n<p align=\"center\"><a class=\"elementor-button large green rounded\" href=\"https:\/\/espressoenglish.lpages.co\/free-pdf-irregular-plural-nouns\/\"><strong>Download free lesson PDF + quiz<\/strong><\/a><\/p>\n<h3>Regular Plural Nouns:<\/h3>\n<h3>Add -S<\/h3>\n<ul>\n<li>wall &#8211; <strong>walls<\/strong><\/li>\n<li>ski &#8211; <strong>skis<\/strong><\/li>\n<li>cat &#8211; <strong>cats<\/strong><\/li>\n<\/ul>\n<h3>Nouns Ending In -Ch, -Sh, -X, -S Sounds:<\/h3>\n<h3>Add -ES<\/strong><\/h3>\n<ul>\n<li>switch &#8211; <strong>switches<\/strong><\/li>\n<li>brush &#8211; <strong>brushes<\/strong><\/li>\n<li>box &#8211; <strong>boxes<\/strong><\/li>\n<li>address &#8211; <strong>addresses<\/strong><\/li>\n<\/ul>\n<p>Exceptions: stomach\/stomachs, matrix \/ matrices<\/p>\n<h3>Nouns Ending In consonant-Y:<\/h3>\n<h3>End With -IES<\/strong><\/h3>\n<ul>\n<li>baby &#8211; <strong>babies<\/strong><\/li>\n<li>army &#8211; <strong>armies<\/strong><\/li>\n<li>puppy &#8211; <strong>puppies<\/strong><\/li>\n<\/ul>\n<p>If the noun ends in vowel-y: just add -S<\/p>\n<ul>\n<li>day &#8211; <strong>days<\/strong><\/li>\n<li>key &#8211; <strong>keys<\/strong><\/li>\n<li>toy &#8211; <strong>toys<\/strong><\/li>\n<\/ul>\n<figure id=\"attachment_23300\" aria-describedby=\"caption-attachment-23300\" style=\"width: 424px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-23300\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/puppies.jpg\" alt=\"\" width=\"424\" height=\"283\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/puppies.jpg 640w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/puppies-300x200.jpg 300w\" sizes=\"auto, (max-width: 424px) 100vw, 424px\" \/><figcaption id=\"caption-attachment-23300\" class=\"wp-caption-text\">The plural of puppy is puppies (not puppys)<\/figcaption><\/figure>\n<h3>Nouns Ending In -O:<\/h3>\n<h3>-S Or -ES (Depends On The Word!)<\/h3>\n<p><strong>Words that end in a vowel + o: Just add -s<\/strong><\/p>\n<ul>\n<li>zoo &#8211; <strong>zoos<\/strong><\/li>\n<li>radio &#8211; <strong>radios<\/strong><\/li>\n<li>video &#8211; <strong>videos<\/strong><\/li>\n<li>tattoo &#8211; <strong>tattoos<\/strong><\/li>\n<\/ul>\n<p><strong>Musical words: Just add -s<\/strong><\/p>\n<ul>\n<li>solo &#8211; <strong>solos<\/strong><\/li>\n<li>piano &#8211; <strong>pianos<\/strong><\/li>\n<li>cello &#8211; <strong>cellos<\/strong><\/li>\n<\/ul>\n<p><strong>Words from Italian\/Spanish: Just add -s<\/strong><\/p>\n<ul>\n<li>taco &#8211; <strong>tacos<\/strong><\/li>\n<li>avocado &#8211; <strong>avocados<\/strong><\/li>\n<li>tornado &#8211; <strong>tornados<\/strong><\/li>\n<li>casino &#8211; <strong>casinos<\/strong><\/li>\n<\/ul>\n<figure id=\"attachment_23301\" aria-describedby=\"caption-attachment-23301\" style=\"width: 364px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-23301\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/tacos.jpg\" alt=\"\" width=\"364\" height=\"242\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/tacos.jpg 640w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/tacos-300x200.jpg 300w\" sizes=\"auto, (max-width: 364px) 100vw, 364px\" \/><figcaption id=\"caption-attachment-23301\" class=\"wp-caption-text\">The plural of taco is tacos<\/figcaption><\/figure>\n<p><strong>Shortened words: Just add -s<\/strong><\/p>\n<ul>\n<li>photo &#8211; <strong>photos<\/strong><\/li>\n<li>kilo &#8211; <strong>kilos<\/strong><\/li>\n<li>auto &#8211; <strong>autos<\/strong><\/li>\n<li>pro &#8211; <strong>pros<\/strong><\/li>\n<\/ul>\n<p><strong>Always \u2013ES:<\/strong><\/p>\n<ul>\n<li>potato\/tomato &#8211; <strong>potatoes\/tomatoes<\/strong><\/li>\n<li>hero &#8211; <strong>heroes<\/strong><\/li>\n<li>torpedo &#8211; <strong>torpedoes<\/strong><\/li>\n<li>echo &#8211; <strong>echoes<\/strong><\/li>\n<\/ul>\n<figure id=\"attachment_23302\" aria-describedby=\"caption-attachment-23302\" style=\"width: 385px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-23302\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/potatoes-1585060_640.jpg\" alt=\"\" width=\"385\" height=\"253\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/potatoes-1585060_640.jpg 640w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/potatoes-1585060_640-300x197.jpg 300w\" sizes=\"auto, (max-width: 385px) 100vw, 385px\" \/><figcaption id=\"caption-attachment-23302\" class=\"wp-caption-text\">The plural of potato is potatoes<\/figcaption><\/figure>\n<p><strong>Some can be both!<\/strong><\/p>\n<ul>\n<li>ghetto &#8211; <strong>ghettos \/ ghettoes<\/strong><\/li>\n<li>mango &#8211; <strong>mangos \/ mangoes<\/strong><\/li>\n<li>mosquito &#8211; <strong>mosquitos \/ mosquitoes<\/strong><\/li>\n<li>volcano &#8211; <strong>volcanos \/ volcanoes<\/strong><\/li>\n<\/ul>\n<div class=\"alert\">\n<p align=\"center\"><a href=\"https:\/\/espressoenglish.lpages.co\/free-pdf-irregular-plural-nouns\/\"><img decoding=\"async\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural.png\" alt=\"\" width=\"400\" class=\"aligncenter size-full wp-image-23311\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural.png 1000w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural-300x194.png 300w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural-768x498.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n<p align=\"center\"><a class=\"elementor-button large green rounded\" href=\"https:\/\/espressoenglish.lpages.co\/free-pdf-irregular-plural-nouns\/\"><strong>Download free lesson PDF + quiz<\/strong><\/a><\/p>\n<\/div>\n<h3>Nouns Ending In -F Sound: Change To -VES<\/h3>\n<ul>\n<li>knife &#8211; <strong>knives<\/strong><\/li>\n<li>wife &#8211; <strong>wives<\/strong><\/li>\n<li>half &#8211; <strong>halves<\/strong><\/li>\n<li>life &#8211; <strong>lives<\/strong><\/li>\n<li>self &#8211; <strong>selves<\/strong><\/li>\n<li>wolf &#8211; <strong>wolves<\/strong><\/li>\n<li>leaf &#8211; <strong>leaves<\/strong><\/li>\n<\/ul>\n<p>Exceptions: <strong>chef\/chefs<\/strong> and <strong>roof\/roofs<\/strong><\/p>\n<figure id=\"attachment_23303\" aria-describedby=\"caption-attachment-23303\" style=\"width: 355px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-23303\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/knives-1839061_640.jpg\" alt=\"\" width=\"355\" height=\"233\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/knives-1839061_640.jpg 640w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/knives-1839061_640-300x197.jpg 300w\" sizes=\"auto, (max-width: 355px) 100vw, 355px\" \/><figcaption id=\"caption-attachment-23303\" class=\"wp-caption-text\">The plural of knife is knives<\/figcaption><\/figure>\n<h3>VERY Irregular Nouns<\/h3>\n<ul>\n<li>man &#8211; <strong>men<\/strong><\/li>\n<li>woman &#8211; <strong>women<\/strong><\/li>\n<li>child &#8211; <strong>children<\/strong><\/li>\n<li>person &#8211; <strong>people<\/strong><\/li>\n<li>tooth &#8211; <strong>teeth<\/strong><\/li>\n<li>foot &#8211; <strong>feet<\/strong><\/li>\n<li>die &#8211; <strong>dice<\/strong><\/li>\n<li>vertebra &#8211; <strong>vertebrae<\/strong><\/li>\n<li>antenna &#8211; <strong>antennas<\/strong> (electrical) and <strong>antennae<\/strong> (insects)<\/li>\n<li>mouse &#8211; <strong>mice<\/strong><\/li>\n<li>goose &#8211; <strong>geese<\/strong><\/li>\n<li>ox &#8211; <strong>oxen<\/strong><\/li>\n<\/ul>\n<figure id=\"attachment_23304\" aria-describedby=\"caption-attachment-23304\" style=\"width: 372px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-23304\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/dice.jpg\" alt=\"\" width=\"372\" height=\"248\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/dice.jpg 640w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/dice-300x200.jpg 300w\" sizes=\"auto, (max-width: 372px) 100vw, 372px\" \/><figcaption id=\"caption-attachment-23304\" class=\"wp-caption-text\">The plural of die is dice<\/figcaption><\/figure>\n<h3>Nouns with the same singular and plural form<\/h3>\n<ul>\n<li>one sheep, two <strong>sheep<\/strong><\/li>\n<li>one deer, two <strong>deer<\/strong><\/li>\n<li>one fish, two <strong>fish<\/strong><\/li>\n<li>one series, two <strong>series<\/strong><\/li>\n<li>one species, two <strong>species<\/strong><\/li>\n<\/ul>\n<figure id=\"attachment_23305\" aria-describedby=\"caption-attachment-23305\" style=\"width: 399px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-23305\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/roe-deer-1482712_640.jpg\" alt=\"\" width=\"399\" height=\"266\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/roe-deer-1482712_640.jpg 640w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/roe-deer-1482712_640-300x200.jpg 300w\" sizes=\"auto, (max-width: 399px) 100vw, 399px\" \/><figcaption id=\"caption-attachment-23305\" class=\"wp-caption-text\">The plural of deer is deer<\/figcaption><\/figure>\n<h3>Latin\/Greek Nouns: US \u2013&gt; I<\/h3>\n<ul>\n<li>alumnus\/alumna &#8211; <strong>alumni<\/strong><\/li>\n<li>cactus &#8211; <strong>cacti<\/strong><\/li>\n<li>focus &#8211; <strong>foci<\/strong><br \/>\n<em>Some people do say &#8220;focuses.&#8221; Alternatively, you could say &#8220;points of focus&#8221; or &#8220;focal points&#8221; for the plural of &#8220;focus&#8221;<\/em><\/li>\n<li>fungus &#8211; <strong>fungi<\/strong><\/li>\n<li>nucleus &#8211; <strong>nuclei<\/strong><\/li>\n<li>stimulus &#8211; <strong>stimuli<\/strong><\/li>\n<li>syllabus &#8211; <strong>syllabi<\/strong><\/li>\n<\/ul>\n<figure id=\"attachment_23306\" aria-describedby=\"caption-attachment-23306\" style=\"width: 396px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-23306\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/cacti-1453793_640.jpg\" alt=\"\" width=\"396\" height=\"223\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/cacti-1453793_640.jpg 640w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2014\/05\/cacti-1453793_640-300x169.jpg 300w\" sizes=\"auto, (max-width: 396px) 100vw, 396px\" \/><figcaption id=\"caption-attachment-23306\" class=\"wp-caption-text\">The plural of cactus is cacti<\/figcaption><\/figure>\n<h3>Latin\/Greek Nouns: IS \u2013&gt; ES<\/h3>\n<ul>\n<li>analysis &#8211; <strong>analyses<\/strong><\/li>\n<li>axis &#8211; <strong>axes<\/strong><\/li>\n<li>basis &#8211; <strong>bases<\/strong><\/li>\n<li>crisis &#8211; <strong>crises<\/strong><\/li>\n<li>diagnosis &#8211; <strong>diagnoses<\/strong><\/li>\n<li>hypothesis &#8211; <strong>hypotheses<\/strong><\/li>\n<li>oasis &#8211; <strong>oases<\/strong><\/li>\n<\/ul>\n<h3>Latin\/Greek Nouns: UM\/ON \u2013&gt; A<\/h3>\n<ul>\n<li>bacterium &#8211; <strong>bacteria<\/strong><\/li>\n<li>criterion &#8211; <strong>criteria<\/strong><\/li>\n<li>curriculum &#8211; <strong>curricula<\/strong><\/li>\n<li>datum &#8211; <strong>data<\/strong><\/li>\n<li>millennium &#8211; <strong>millennia<\/strong><\/li>\n<li>phenomenon &#8211; <strong>phenomena<\/strong><\/li>\n<\/ul>\n<div class=\"alert\">\n<p align=\"center\"><a href=\"https:\/\/espressoenglish.lpages.co\/free-pdf-irregular-plural-nouns\/\"><img decoding=\"async\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural.png\" alt=\"\" width=\"400\" class=\"aligncenter size-full wp-image-23311\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural.png 1000w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural-300x194.png 300w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2023\/12\/irregular-plural-768x498.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n<p align=\"center\"><a class=\"elementor-button large green rounded\" href=\"https:\/\/espressoenglish.lpages.co\/free-pdf-irregular-plural-nouns\/\"><strong>Download free lesson PDF + quiz<\/strong><\/a><\/p>\n<\/div>\n<p><em style=\"font-size: 16px;\">Learn more: <a href=\"https:\/\/www.espressoenglish.net\/10-types-of-nouns-in-english\/\">10 types of nouns<\/a><\/em><\/p>\n<p><span style=\"font-weight: 400;\">Do you think you can remember all those irregular plural nouns? Try using as many as you can in sentences!<\/span><\/p>\n<p><span style=\"font-weight: 400;\">And I\u2019d like to invite you to join me inside my Advanced English Grammar Course. If you\u2019re really looking to take your English to the next level in just about 15 minutes a day, this course will help you get there. <\/span><\/p>\n<div class=\"alert\">\n<h3 style=\"text-align: center;\">Master the details of English grammar:<\/strong><\/h3>\n<p style=\"text-align: center;\"><a href=\"https:\/\/espressoenglish.lpages.co\/advanced-english-grammar-course\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-19991 size-full\" src=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2021\/07\/aegc.png\" alt=\"Advanced English Grammar Course\" width=\"700\" height=\"534\" srcset=\"https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2021\/07\/aegc.png 700w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2021\/07\/aegc-300x229.png 300w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2021\/07\/aegc-1024x780.png 1024w, https:\/\/www.espressoenglish.net\/wp-content\/uploads\/2021\/07\/aegc-768x585.png 768w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/p>\n<p><center><span style=\"color: #ffffff;\"><a class=\"elementor-button rounded large blue\" style=\"color: #ffffff;\" href=\"https:\/\/espressoenglish.lpages.co\/advanced-english-grammar-course\/\"><strong>Learn more about this course<\/strong><\/a><\/span><\/center><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Let&#8217;s learn 50 irregular plural nouns &#8211; these are nouns that don\u2019t follow the normal rules for forming plurals! Even a lot of native English speakers aren\u2019t sure about how to make the plural forms of these words. When you learn them, you can avoid mistakes and then be confident that your English is correct. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23312,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-9622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grammar"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>50+ Irregular Plural Nouns in English - Espresso English<\/title>\n<meta name=\"description\" content=\"These irregular plural nouns don&#039;t follow the typical rules! 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