The word it's is actually a contraction, a shortened form of the personal pronoun it and the verb is.
The contractions it's functions as the subject and verb (or auxiliary verb) of a sentence or a clause.
The sound alike word its is a possessive pronoun; that is, it expresses the condition of belonging - specifically, belonging to something with a neuter or unknown gender.
Possessive pronouns like his, hers, yours, theirs, etc. are exceptions to the English rule that possession is shown by using an apostrophe. For example, The car's color is blue(with an apostrophe) ... but Its color is blue (without an apostrophe)
If you're not sure which word to use, just remember that it's is the contraction for it is. If the sentence also makes sense when you write it using it is, then it's is correct. If the sentence doesn't make any sense with it is, then use its:
"It is time to go" is also correct, so use It's
"The dog ate it is food" is not valid English, so use its (the food belongs to the dog).
The pronoun "them" is an objective case pronoun. It functions as the object of a verb or a preposition in a sentence.
The word "me" is a pronoun that functions as an objective pronoun, used as the object of a verb or preposition, indicating the person speaking.
"Whomever" is the objective case of the "universal" relative pronoun "whoever".
"None" can function as a pronoun indicating no amount or quantity. For example, "None of the cookies were left."
The word us is the first person plural objective case pronoun.
Interrogative pronoun
'than' is not a pronoun.
The pronoun 'them' is the third person, plural, objective, personal pronoun.
"Of" is not a pronoun. He, she, it, they, them, are all pronouns. "Of" is a preposition.
It is not a pronoun it is a common noun.
The word 'or' is not a pronoun; or is a conjunction, a preposition, or a noun.
Whoever is a subjective pronoun.
Video is not a pronoun, it is a common noun.
It's called a reflexive pronoun.
The pronouns in the sentence are what (an interrogative pronoun) and you (a personal pronoun).
The kind of noun or pronoun that corresponds with myself is a reflexive pronoun. The personal pronoun that would be used in this case is 'I'. In reflexive form you would say 'myself'.
"That" is a demonstrative pronoun. You "demonstrate" which thing you mean.