English verb conjugation
COULD VETO

Regular verb: veto - vetoed - vetoed

Affirmation

Simple form	V-ing form
I could veto you could veto she could veto we could veto you could veto they could veto	I could be vetoing you could be vetoing she could be vetoing we could be vetoing you could be vetoing they could be vetoing
Perfect	V-ing perfect
I could have vetoed you could have vetoed she could have vetoed we could have vetoed you could have vetoed they could have vetoed	I could have been vetoing you could have been vetoing she could have been vetoing we could have been vetoing you could have been vetoing they could have been vetoing

Negation

Simple form	V-ing form
I could not veto you could not veto she could not veto we could not veto you could not veto they could not veto	I could not be vetoing you could not be vetoing she could not be vetoing we could not be vetoing you could not be vetoing they could not be vetoing
Perfect	V-ing perfect
I could not have vetoed you could not have vetoed she could not have vetoed we could not have vetoed you could not have vetoed they could not have vetoed	I could not have been vetoing you could not have been vetoing she could not have been vetoing we could not have been vetoing you could not have been vetoing they could not have been vetoing

Interrogative form

Simple form	V-ing form
could I veto? could you veto? could she veto? could we veto? could you veto? could they veto?	could I be vetoing? could you be vetoing? could she be vetoing? could we be vetoing? could you be vetoing? could they be vetoing?
Perfect	V-ing perfect
could I have vetoed? could you have vetoed? could she have vetoed? could we have vetoed? could you have vetoed? could they have vetoed?	could I have been vetoing? could you have been vetoing? could she have been vetoing? could we have been vetoing? could you have been vetoing? could they have been vetoing?

Interro-negative form

Simple form	V-ing form
could I not veto? could you not veto? could she not veto? could we not veto? could you not veto? could they not veto?	could I not be vetoing? could you not be vetoing? could she not be vetoing? could we not be vetoing? could you not be vetoing? could they not be vetoing?
Perfect	V-ing perfect
could I not have vetoed? could you not have vetoed? could she not have vetoed? could we not have vetoed? could you not have vetoed? could they not have vetoed?	could I not have been vetoing? could you not have been vetoing? could she not have been vetoing? could we not have been vetoing? could you not have been vetoing? could they not have been vetoing?