I can veto you can veto he can veto we can veto you can veto they can veto
V-ing form
I can be vetoing you can be vetoing he can be vetoing we can be vetoing you can be vetoing they can be vetoing
Perfect
I can have vetoed you can have vetoed he 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 he can have been vetoing we can have been vetoing you can have been vetoing they can have been vetoing
Negation
Simple form
I can't veto you can't veto he can't veto we can't veto you can't veto they can't veto
V-ing form
I can't be vetoing you can't be vetoing he can't be vetoing we can't be vetoing you can't be vetoing they can't be vetoing
Perfect
I can't have vetoed you can't have vetoed he can't have vetoed we can't have vetoed you can't have vetoed they can't have vetoed
V-ing perfect
I can't have been vetoing you can't have been vetoing he can't have been vetoing we can't have been vetoing you can't have been vetoing they can't have been vetoing
Interrogative form
Simple form
can I veto? can you veto? can he veto? can we veto? can you veto? can they veto?
V-ing form
can I be vetoing? can you be vetoing? can he be vetoing? can we be vetoing? can you be vetoing? can they be vetoing?
Perfect
can I have vetoed? can you have vetoed? can he 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 he have been vetoing? can we have been vetoing? can you have been vetoing? can they have been vetoing?
Interro-negative form
Simple form
can't I veto? can't you veto? can't he veto? can't we veto? can't you veto? can't they veto?
V-ing form
can't I be vetoing? can't you be vetoing? can't he be vetoing? can't we be vetoing? can't you be vetoing? can't they be vetoing?
Perfect
can't I have vetoed? can't you have vetoed? can't he have vetoed? can't we have vetoed? can't you have vetoed? can't they have vetoed?
V-ing perfect
can't I have been vetoing? can't you have been vetoing? can't he have been vetoing? can't we have been vetoing? can't you have been vetoing? can't they have been vetoing?