I could answer this if I knew what group of words you are talking about.
The possessive form are: year : year's tree : tree's writers : writers' sheep : sheep's library : library's sailors : sailors' group : group's lady: lady's
The correct possessive form is: each other'slives.
This question makes no sense. Please rephrase it.
The possessive form of the reciprocal pronoun each other is each other's.example: My sister and I often cut each other's hair.
No, possessive pronouns do not need an apostrophe. Apostrophes are used to make nouns possessive, not pronouns. The possessive pronouns are: mine, yours, his, hers, its, ours, theirs. Examples of possessive nouns: Andy's, bank's, cat's, daughter's, egg's, fence's, Germany's
Examples:Mary and Mark's child starts school this year. (the child that belongs to Mary and Mark is the same child, so only use the possessive form for the last of the group of possessive nouns)Mary's boy and Mark's girl start school this year. (the boy and the girl are two different children belonging to different parents, so each possessive noun is the possessive form)
Please rephrase - the question is unclear.
The possessive form of the plural noun mosses is mosses'.Example: Write the mosses' species on the label for each.
The possessive form of the noun month is month's.Example: Each month's schedule is posted on this bulletin board.
The possessive form of the singular noun half is half's. Example: Each half's weight should be equal.
The plural form of the noun statue is statues.The plural possessive form is statues'.Example: The statues' bases were each inscribed with a name.
The possessive form for the plural noun families is families'.Example: The families' picnic turned out to be a lot of fun and each family brought something good to eat.