Як поняти де ставити is а де are дуже потрібно

is употребляется с He, She, It

are с You, We, They

am с I

Объяснение:

глагол to be в настоящем времени

например: He is good

She is sleeping right now.

It is raining

You are bad

We are cooking right now

They are going to talk to him

I am brushing my teeth now

Ми ставимо is для однини (тобто he/she/it)

А are використовуємо для множини (we/you/they)