What does possessives and contractions mean?

A possessive noun is a noun that shows that something in the sentence belongs to that noun.
Examples:

I gave it to Jack's mother. I don't know the envelope's contents.

There are two types of pronouns that show possession. The possessive forms of pronouns do not use an apostrophe.
A possessive pronoun takes the place of a noun that belongs to someone or something.

The possessive pronouns are: mine, yours, his, hers, its, ours, theirs.
Example: The mother I gave it to was his.

A possessive adjective is placed before a noun to show that the noun belongs to someone or something.

The possessive adjectives are: my, your, his, her, their, its.
Example: I gave it to his mother.

A contraction is a Word made up of two or more Words that is a shortened form, with the missing letters replaced by an apostrophe.

Examples:

• can't (can not)
• could've (could have)
• he'd (he had)
• I'll (I will or I shall)
• it's (it is)
• ma'am (madam)
• ne'er do well (never do well)
• she's (she has)
• that's (that is)
• you've (you have)