Grandmother is singular; the plural form is grandmothers.
The noun 'birds' is plural, a word for two or more creatures.one birdmany birds
The irregular plural form for the noun knife is knives.
The plural form for the noun grandmother is grandmothers. The plural possessive form is grandmothers'.
The plural form for the noun grandmother is grandmothers. The plural possessive form is grandmothers'.
The noun "uncles" is the plural form of the singular noun "uncle".Examples:Both of my uncles are bald. (plural, two uncles)My uncle gave me the book. (singular, one uncle)
singluar, possessive.
Singular
The plural possessive is grandmothers'.
Subject (before a noun): (singular) my, your, his (plural) our, your, their Object (after a noun): (singluar) mine, yours, his, hers (plural) ours, yours, theirs. "Its" can be used in both subjective senses, but not objective.
The compound noun great-grandmother is the singular form. The plural form is great-grandmothers.
The singular possessive form is lumberjack's.
The singluar form of "fruit" in Spanish is fruta, and the plural form is frutas.