All and All Of
The Quick AnswerUse all of before words like us, you, it, him, and her (i.e., pronouns). For example:
- All of us
- All the cheese
- All the soldiers
Using All and All OfThere is often confusion over all and all of. As a very general guideline, use all of when the next word is a pronoun (e.g., us, you, it, him, her). For example:
- All of us...
- All of you...
- All of it...
Not a Rule but a GuidelineThe word all is used as either an indefinite adjective (e.g., all the soldiers) or an indefinite pronoun (e.g., all of the soldiers).
As indefinite adjectives are not generally used to modify pronouns, terms like all us are wrong. With nouns, however, you have a choice of constructions:
- Choice 1: All the soldiers (This is all as an indefinite adjective.)
- Choice 2: All of the soldiers (This is all as an indefinite pronoun.)