(yo) No he comido.
I have not eaten.
(tú) No has comido.
You have not eaten.
(él) No ha comido.
He has not eaten.
(nosotros) No hemos comido.
We have not eaten.
(vosotros) No habé is comido.
You-all have not eaten.
(ellos) No han comido.
They have not eaten.