No, but some plural words have other meanings that can be pluralized. The plural "peoples" refers to more than one "people" (collective noun for an ethnic group).
Yes, words that keep the same form in singular and plural are considered irregular plurals. Examples include sheep, deer, and aircraft.
"Child" (children), "ox" (oxen), and "brother" (brethren) are examples of words with plurals formed by adding -en.
Aloha: In terms of adding an s... no, there are no plurals. Words like 'many' [nui], and 'more' [hou] are used instead.
How can you make any sense without plurals and possessives? You have to use the words you need to make yourself understood.
leaf,calf,knife,wife
Vicinities, almost all plurals of words that end "y" is "ies".
TCH
4 letter words made from A D V I S I N G (no plurals): * sing * sang * gain * ding * visa * snag * diva * vain * sand * said
plurals and possessive
Possibly. It appears she may have a lisp when she says certain words such as, friends or any words that can be made into plurals.
es, like echo- e choes that would be plural
Normal words do not form plurals with apostrophes. The plural is spelled "advantages" and the adjective is "advantageous".