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 can't continue you can't continue he can't continue we can't continue you can't continue they can't continue
V-ing form
I can't be continuing you can't be continuing he can't be continuing we can't be continuing you can't be continuing they can't be continuing
Perfect
I can't have continued you can't have continued he can't have continued we can't have continued you can't have continued they can't have continued
V-ing perfect
I can't have been continuing you can't have been continuing he can't have been continuing we can't have been continuing you can't have been continuing they can't 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't I continue? can't you continue? can't he continue? can't we continue? can't you continue? can't they continue?
V-ing form
can't I be continuing? can't you be continuing? can't he be continuing? can't we be continuing? can't you be continuing? can't they be continuing?
Perfect
can't I have continued? can't you have continued? can't he have continued? can't we have continued? can't you have continued? can't they have continued?
V-ing perfect
can't I have been continuing? can't you have been continuing? can't he have been continuing? can't we have been continuing? can't you have been continuing? can't they have been continuing?