I can blister you can blister she can blister we can blister you can blister they can blister
V-ing form
I can be blistering you can be blistering she can be blistering we can be blistering you can be blistering they can be blistering
Perfect
I can have blistered you can have blistered she can have blistered we can have blistered you can have blistered they can have blistered
V-ing perfect
I can have been blistering you can have been blistering she can have been blistering we can have been blistering you can have been blistering they can have been blistering
Negation
Simple form
I cannot blister you cannot blister she cannot blister we cannot blister you cannot blister they cannot blister
V-ing form
I cannot be blistering you cannot be blistering she cannot be blistering we cannot be blistering you cannot be blistering they cannot be blistering
Perfect
I cannot have blistered you cannot have blistered she cannot have blistered we cannot have blistered you cannot have blistered they cannot have blistered
V-ing perfect
I cannot have been blistering you cannot have been blistering she cannot have been blistering we cannot have been blistering you cannot have been blistering they cannot have been blistering
Interrogative form
Simple form
can I blister? can you blister? can she blister? can we blister? can you blister? can they blister?
V-ing form
can I be blistering? can you be blistering? can she be blistering? can we be blistering? can you be blistering? can they be blistering?
Perfect
can I have blistered? can you have blistered? can she have blistered? can we have blistered? can you have blistered? can they have blistered?
V-ing perfect
can I have been blistering? can you have been blistering? can she have been blistering? can we have been blistering? can you have been blistering? can they have been blistering?
Interro-negative form
Simple form
can I not blister? can you not blister? can she not blister? can we not blister? can you not blister? can they not blister?
V-ing form
can I not be blistering? can you not be blistering? can she not be blistering? can we not be blistering? can you not be blistering? can they not be blistering?
Perfect
can I not have blistered? can you not have blistered? can she not have blistered? can we not have blistered? can you not have blistered? can they not have blistered?
V-ing perfect
can I not have been blistering? can you not have been blistering? can she not have been blistering? can we not have been blistering? can you not have been blistering? can they not have been blistering?