There are four types of pronouns: Subject Pronouns, Object Pronouns, Possessive Pronouns and Demonstrative Pronouns. Here is a list and explanation showing the different types of pronouns:
§ Subject Pronouns - I, you, he, she, it, we, you, they function as the subject of a sentence:
I live in New York.
Do you like playing tennis?
He doesn't want to come this evening.
She works in London.
It won't be easy.
Subjunctive (I suggest you do)