The plurals of the nouns are:
deep - deeps (the adjective deep has no plural)
nappy - nappies
foot - feet
man - men
goose - geese
elf - elves
The plural of "foot" is "feet" because it follows an irregular pattern in English language. Many irregular plurals in English come from Old English or other ancient languages, and "foot" is one of them.
man - men foot - feet goose - geese mouse - mice louse - lice
The are different kinds of "special" singulars in the sense you mean. One kind is nouns that form the plural by changing the vowel instead of simply adding -s, as most plurals are formed. These include old words like man/men, goose/geese, mouse/mice etc. Other old nouns have plurals in -n, such as oxen, brethren and children ( children actually has two pluralizing elements, the -r and the -n). There are nouns that have the same form in the singulalr and the plural, which includes imported words like species, series and congeries; but also native animal words like sheep or deer. Some nouns may have both regular and irregular plurals. Fish, for example, is generally fish in the plural, but may sometimes be fishes. And some are always plural in form but singular in meaning, like economics and data.
Some examples of irregular nouns include "child" (plural: children), "foot" (plural: feet), and "mouse" (plural: mice). These nouns do not follow the typical rules for forming plurals in English.
mouse-mice foot-feet goose-geese man-men woman-women
The plural is feet.
The plural of "foot" is "feet" because it follows an irregular pattern in English language. Many irregular plurals in English come from Old English or other ancient languages, and "foot" is one of them.
Some examples of irregular plurals that change the word like foot to feet are:axis to axeschild to childrendeer to deergoose to geeselouse to liceman to menmouse to miceoasis to oasesox to oxenperson to peopleseries to seriestooth to teethWith a couple that don't change at all, just to see if you're paying attention.
A goose's foot is commonly referred to as a "webbed foot." This adaptation helps geese swim efficiently in water. The webbing between their toes allows them to paddle effectively, making them strong swimmers.
how do I treat deep cut under foot
Words that are made plural by changing the spelling instead of adding an 's' or 'es' are called irregular plurals. Some examples of irregular plurals are:singular / pluralalumnus / alumnicactus / cacticalf / calveschild / childrendatum / datafoot / feetgoose / geeseknife / knivesleaf / leaveslife / livesman / menmouse / miceox / oxenperson / peopletooth / teethwoman / women
well it s almost 1 foot 1 foot and a half maybe two
About a foot deep.
10 fathoms is roughly 60 foot deep as 1 fathom is about 6 foot
man - men foot - feet goose - geese mouse - mice louse - lice
80 to 100 foot deep
it is 45 foot deep (15m) at deepest