You are
Es
I am
Sum
He/she is
Est
We are
Sumus
You (pl)
Estis
They are
Sunt
I am able
Possum
You are able
Potes
He/she are able
Potest
We are able
Possumus
You (pl) are able
Potestis
They are able
Possunt
I was
Eram
You were
Eras
He/she was
Erat
We were
Eramus
You (pl) were
Eratis
They were
Erant
I was able
Poteram
You were able
Poteras
He/she was able
Poterat
We were able
Poteramus
You (pl) were able
Poteratis
They were able
Poterant