present
I guess
You guess
He guesses
She guesses
It guesses
We guess
They guess
past
I guessed
You guessed
He guessed
She guessed
It guessed
We guessed
They guessed
future
I will guess
You will guess
He will guess
She will guess
It will guess
We will guess
They will guess
conditional
I would guess
You would guess
He would guess
She would guess
It would guess
We would guess
They would guess