I can veg you can veg he can veg we can veg you can veg they can veg
V-ing form
I can be vegging you can be vegging he can be vegging we can be vegging you can be vegging they can be vegging
Perfect
I can have vegged you can have vegged he can have vegged we can have vegged you can have vegged they can have vegged
V-ing perfect
I can have been vegging you can have been vegging he can have been vegging we can have been vegging you can have been vegging they can have been vegging
Negation
Simple form
I cannot veg you cannot veg he cannot veg we cannot veg you cannot veg they cannot veg
V-ing form
I cannot be vegging you cannot be vegging he cannot be vegging we cannot be vegging you cannot be vegging they cannot be vegging
Perfect
I cannot have vegged you cannot have vegged he cannot have vegged we cannot have vegged you cannot have vegged they cannot have vegged
V-ing perfect
I cannot have been vegging you cannot have been vegging he cannot have been vegging we cannot have been vegging you cannot have been vegging they cannot have been vegging
Interrogative form
Simple form
can I veg? can you veg? can he veg? can we veg? can you veg? can they veg?
V-ing form
can I be vegging? can you be vegging? can he be vegging? can we be vegging? can you be vegging? can they be vegging?
Perfect
can I have vegged? can you have vegged? can he have vegged? can we have vegged? can you have vegged? can they have vegged?
V-ing perfect
can I have been vegging? can you have been vegging? can he have been vegging? can we have been vegging? can you have been vegging? can they have been vegging?
Interro-negative form
Simple form
can I not veg? can you not veg? can he not veg? can we not veg? can you not veg? can they not veg?
V-ing form
can I not be vegging? can you not be vegging? can he not be vegging? can we not be vegging? can you not be vegging? can they not be vegging?
Perfect
can I not have vegged? can you not have vegged? can he not have vegged? can we not have vegged? can you not have vegged? can they not have vegged?
V-ing perfect
can I not have been vegging? can you not have been vegging? can he not have been vegging? can we not have been vegging? can you not have been vegging? can they not have been vegging?