Verb To Be (Form)

Affirmative
Exemplo: I am tired.

Negative
Exemplo: I am not tired (I’m not tired).

Interrogative
Exemplo: Am I tired?
Exemplo: Why am I tired?

Affirmative
Exemplo: She is beautiful.
Negative
Exemplo: She isn’t beautiful.
Interrogative
Exemplo: Is she beautiful?

Affirmative
Exemplo: We are lost.
Negative
Exemplo: We aren’t lost.
Interrogative
Exemplo: Are we lost?