I can veto you can veto she can veto we can veto you can veto they can veto
V-ing form
I can be vetoing you can be vetoing she can be vetoing we can be vetoing you can be vetoing they can be vetoing
Perfect
I can have vetoed you can have vetoed she can have vetoed we can have vetoed you can have vetoed they can have vetoed
V-ing perfect
I can have been vetoing you can have been vetoing she can have been vetoing we can have been vetoing you can have been vetoing they can have been vetoing
Negation
Simple form
I cannot veto you cannot veto she cannot veto we cannot veto you cannot veto they cannot veto
V-ing form
I cannot be vetoing you cannot be vetoing she cannot be vetoing we cannot be vetoing you cannot be vetoing they cannot be vetoing
Perfect
I cannot have vetoed you cannot have vetoed she cannot have vetoed we cannot have vetoed you cannot have vetoed they cannot have vetoed
V-ing perfect
I cannot have been vetoing you cannot have been vetoing she cannot have been vetoing we cannot have been vetoing you cannot have been vetoing they cannot have been vetoing
Interrogative form
Simple form
can I veto? can you veto? can she veto? can we veto? can you veto? can they veto?
V-ing form
can I be vetoing? can you be vetoing? can she be vetoing? can we be vetoing? can you be vetoing? can they be vetoing?
Perfect
can I have vetoed? can you have vetoed? can she have vetoed? can we have vetoed? can you have vetoed? can they have vetoed?
V-ing perfect
can I have been vetoing? can you have been vetoing? can she have been vetoing? can we have been vetoing? can you have been vetoing? can they have been vetoing?
Interro-negative form
Simple form
can I not veto? can you not veto? can she not veto? can we not veto? can you not veto? can they not veto?
V-ing form
can I not be vetoing? can you not be vetoing? can she not be vetoing? can we not be vetoing? can you not be vetoing? can they not be vetoing?
Perfect
can I not have vetoed? can you not have vetoed? can she not have vetoed? can we not have vetoed? can you not have vetoed? can they not have vetoed?
V-ing perfect
can I not have been vetoing? can you not have been vetoing? can she not have been vetoing? can we not have been vetoing? can you not have been vetoing? can they not have been vetoing?