The possessive form for the singular noun lettuce is lettuce's.
The plural of lettuce can be lettuceor lettuces e.g.The farmer grew lettuce for a livingI bought two heads of lettuce from the shopThis effect was not observed in glasshouse-grown lettuces where similar varieties are grown all year round.The first red oak leaf lettuces from River Nene Organic Farm are now going into the boxes along with wet garlic.Both variants are interchangeable
The possessive form of "he" is "his": He did his homework after dinner.
No, it is singular, the possessive form of it is its. The plural form of it is they or them, and the possessive form is their.To answer the question directly: there is no such word as ITS'.
The possessive form is lawyer's.
The possessive form is whistle's.
The possessive form is posse's.
The plural possessive form is Luis's.
The singular possessive form of the noun "it" is "its". Note that there is no apostrophe in the possessive form of "it". The apostrophe is only used after "it" when used as a contraction of "it is".
The singular possessive form is heart's; the plural possessive form is hearts'.
The possessive form for the noun science is science's.
The possessive form for the noun freedom is freedom's.
The singular possessive form is synopsis's.