I am ------- I'm (ja jestem)
you are ------ you're (Ty jesteś)
he is ---------- he's (on jest)
she is -------- she's (ona jest)
it is ----------- it's (ono jest)
we are ------ we're (my jesteśmy)
you are ----- you're (wy jesteście)
they are ------ they're (oni / one są)