Conjugate TO BE in polish for me?

Thank you! I know jestes and .....that's it.
Also can someone point me to a simple and clear thread or website with essential POlish grammar please? I've looked in some threads here, you people explain really well!

I am- Ja jestem
You are (singular)- Ty jesteś
He is- On jest
She is- Ona jest
It is- Ono/ To jest
We are- My jesteśmy
You are (plural)- Wy jesteście
They are (males)- Oni są
They are (women/ children)- One są

Thank you very much, dziadek!