To be is an auxiliary verb. To be has three forms in present. They are am, is, are. Am is used in the first person singular. The pronoun of the first person singular is I. (I am). Is is used in the third person singular. (He, she, it). Are is used in plural.
I am. We are.
You are. You are.
He is. They are.
She is.
It is.
Short forms.
Im. Were.
Youre. Youre.
Hes. Theyre.
Shes.
Its.
To be is an irregular verb. The second form is was/ were. The third form is been.
To be was / were been.
I was. We were.
You were. You were.
He was. They were.
She was.
It was.
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