Subject pronouns are words that stand in for the subject of a sentence. They tell who or what is doing the action. English uses a small set of subject pronouns instead of repeating names or nouns. Knowing these pronouns makes sentences clearer and shorter.

Word/Phrase	Definition
I	I is the subject pronoun for the speaker.
You	You is the subject pronoun for the person or people being spoken to.
He	He is the subject pronoun for a male person or someone referred to as he.
She	She is the subject pronoun for a female person or someone referred to as she.
It	It is the subject pronoun for things, animals when gender is not specified, or ideas.
We	We is the subject pronoun for the speaker plus at least one other person.
They	They is the subject pronoun for more than one person or thing, or for someone referred to as they.

A subject pronoun comes before the verb and shows who is doing the action. In statements, it usually comes at the start of the sentence. In questions with auxiliary verbs, it comes after the auxiliary. The subject pronoun does not change for present or past tense; the verb changes instead.

Rule
A subject pronoun comes before the main verb to show who is acting.
In statements, the subject pronoun usually comes at the beginning of the sentence.
In questions with do, does, or did, the subject pronoun comes after the auxiliary.
The subject pronoun stays the same across tenses; the verb shows the tense.

It refers to a singular thing, an animal with unspecified gender, or a situation. They refers to plural nouns and can also be used for a person when gender is unspecified or unknown. English uses it for weather, time, distance, and general statements. Choosing between it and they depends on whether the noun is treated as singular or plural.

Rule
Use it for a singular non-human or an idea when the gender is not specified.
Use they for plural nouns and for groups of people or things.
Use it as a dummy subject for weather, time, and distance.
Use they as a singular pronoun when a person's gender is unspecified.

I refers to the speaker or writer and is always written with a capital letter. You refers to the listener or reader and does not change for singular or plural in standard English. In conversation, you can mean one person or a group, depending on context. Some regions and situations use extra words to make plural you more explicit.

Region	Word/Phrase	Regional Definition
🇺🇸United States	y'all	This is an informal plural of you used to address a group.
🇬🇧United Kingdom	you lot	This is an informal way to address a group as you.
🇮🇪Ireland	ye	This is a traditional plural of you used to address more than one person.

He is used for a male person or someone who uses he as a pronoun. She is used for a female person or someone who uses she as a pronoun. English speakers choose he or she based on the person's identity or the way the group refers to them. For animals, he or she may be used if the gender is known and relevant.

English subject pronouns replace nouns as the subject and come before the verb. I, you, he, she, it, we, and they cover most situations. Accurate choice of pronoun makes sentences clear about who is doing the action.