Question

Подскажите пожалуйста: как сокращать глагол to be: am, is,are.

Answer 1

I am → I'm 

he is → he's 

she is → she's 

it is → it's 

you are → you're 

we are → we're 

they are → they're

Answer 2

’m = am,
 ’re = are,
’s = is;
 aren’t = are not,
 isn’t = is not