I could weatherstrip you could weatherstrip she could weatherstrip we could weatherstrip you could weatherstrip they could weatherstrip
V-ing form
I could be weatherstriping you could be weatherstriping she could be weatherstriping we could be weatherstriping you could be weatherstriping they could be weatherstriping
Perfect
I could have weatherstriped you could have weatherstriped she could have weatherstriped we could have weatherstriped you could have weatherstriped they could have weatherstriped
V-ing perfect
I could have been weatherstriping you could have been weatherstriping she could have been weatherstriping we could have been weatherstriping you could have been weatherstriping they could have been weatherstriping
Negation
Simple form
I could not weatherstrip you could not weatherstrip she could not weatherstrip we could not weatherstrip you could not weatherstrip they could not weatherstrip
V-ing form
I could not be weatherstriping you could not be weatherstriping she could not be weatherstriping we could not be weatherstriping you could not be weatherstriping they could not be weatherstriping
Perfect
I could not have weatherstriped you could not have weatherstriped she could not have weatherstriped we could not have weatherstriped you could not have weatherstriped they could not have weatherstriped
V-ing perfect
I could not have been weatherstriping you could not have been weatherstriping she could not have been weatherstriping we could not have been weatherstriping you could not have been weatherstriping they could not have been weatherstriping
Interrogative form
Simple form
could I weatherstrip? could you weatherstrip? could she weatherstrip? could we weatherstrip? could you weatherstrip? could they weatherstrip?
V-ing form
could I be weatherstriping? could you be weatherstriping? could she be weatherstriping? could we be weatherstriping? could you be weatherstriping? could they be weatherstriping?
Perfect
could I have weatherstriped? could you have weatherstriped? could she have weatherstriped? could we have weatherstriped? could you have weatherstriped? could they have weatherstriped?
V-ing perfect
could I have been weatherstriping? could you have been weatherstriping? could she have been weatherstriping? could we have been weatherstriping? could you have been weatherstriping? could they have been weatherstriping?
Interro-negative form
Simple form
could I not weatherstrip? could you not weatherstrip? could she not weatherstrip? could we not weatherstrip? could you not weatherstrip? could they not weatherstrip?
V-ing form
could I not be weatherstriping? could you not be weatherstriping? could she not be weatherstriping? could we not be weatherstriping? could you not be weatherstriping? could they not be weatherstriping?
Perfect
could I not have weatherstriped? could you not have weatherstriped? could she not have weatherstriped? could we not have weatherstriped? could you not have weatherstriped? could they not have weatherstriped?
V-ing perfect
could I not have been weatherstriping? could you not have been weatherstriping? could she not have been weatherstriping? could we not have been weatherstriping? could you not have been weatherstriping? could they not have been weatherstriping?