2. To Be — am / is / are

English can't drop the 'link verb' the way Russian/Kazakh often do. Я студент needs a verb in English: I am a student.

I	am	we / you / they	are
he / she / it	is

• Description: She is tired.
• Identity: He is my brother.
• Location: The keys are on the table.

Cheat: no verb 'to be' in your sentence? Something is missing.