En el simple present hay solamente dos verbos que son completamente irregulares. Sin embargo hay cantidad de verbos que forman la tercera persona singular de manera irregular.

Ponga en las casilla el verbo que corresponde en el simple present. Vea capítulo 5 para los detalles. Utilize: to empty, to do, to teach, to be, to have, to go, to reach, to mix, to study, to die
water with oil and wonders why it doesn't work out.
her dust bin to find the letter she threw away yesterday.
The car
to the right, even though it should go to the left.
The man in the corner
English and Mathematics.
happy to have you here.
the size of a mountain, but the weight of a feather.
law at the University of Los Angeles.
With her arm she
to the top of the shelf.
People do not want to
his job with passion, which is good.