I can continue you can continue he can continue we can continue you can continue they can continue
V-ing form
I can be continuing you can be continuing he can be continuing we can be continuing you can be continuing they can be continuing
Perfect
I can have continued you can have continued he can have continued we can have continued you can have continued they can have continued
V-ing perfect
I can have been continuing you can have been continuing he can have been continuing we can have been continuing you can have been continuing they can have been continuing
Negation
Simple form
I cannot continue you cannot continue he cannot continue we cannot continue you cannot continue they cannot continue
V-ing form
I cannot be continuing you cannot be continuing he cannot be continuing we cannot be continuing you cannot be continuing they cannot be continuing
Perfect
I cannot have continued you cannot have continued he cannot have continued we cannot have continued you cannot have continued they cannot have continued
V-ing perfect
I cannot have been continuing you cannot have been continuing he cannot have been continuing we cannot have been continuing you cannot have been continuing they cannot have been continuing
Interrogative form
Simple form
can I continue? can you continue? can he continue? can we continue? can you continue? can they continue?
V-ing form
can I be continuing? can you be continuing? can he be continuing? can we be continuing? can you be continuing? can they be continuing?
Perfect
can I have continued? can you have continued? can he have continued? can we have continued? can you have continued? can they have continued?
V-ing perfect
can I have been continuing? can you have been continuing? can he have been continuing? can we have been continuing? can you have been continuing? can they have been continuing?
Interro-negative form
Simple form
can I not continue? can you not continue? can he not continue? can we not continue? can you not continue? can they not continue?
V-ing form
can I not be continuing? can you not be continuing? can he not be continuing? can we not be continuing? can you not be continuing? can they not be continuing?
Perfect
can I not have continued? can you not have continued? can he not have continued? can we not have continued? can you not have continued? can they not have continued?
V-ing perfect
can I not have been continuing? can you not have been continuing? can he not have been continuing? can we not have been continuing? can you not have been continuing? can they not have been continuing?