I can crimp you can crimp she can crimp we can crimp you can crimp they can crimp
V-ing form
I can be crimping you can be crimping she can be crimping we can be crimping you can be crimping they can be crimping
Perfect
I can have crimped you can have crimped she can have crimped we can have crimped you can have crimped they can have crimped
V-ing perfect
I can have been crimping you can have been crimping she can have been crimping we can have been crimping you can have been crimping they can have been crimping
Negation
Simple form
I cannot crimp you cannot crimp she cannot crimp we cannot crimp you cannot crimp they cannot crimp
V-ing form
I cannot be crimping you cannot be crimping she cannot be crimping we cannot be crimping you cannot be crimping they cannot be crimping
Perfect
I cannot have crimped you cannot have crimped she cannot have crimped we cannot have crimped you cannot have crimped they cannot have crimped
V-ing perfect
I cannot have been crimping you cannot have been crimping she cannot have been crimping we cannot have been crimping you cannot have been crimping they cannot have been crimping
Interrogative form
Simple form
can I crimp? can you crimp? can she crimp? can we crimp? can you crimp? can they crimp?
V-ing form
can I be crimping? can you be crimping? can she be crimping? can we be crimping? can you be crimping? can they be crimping?
Perfect
can I have crimped? can you have crimped? can she have crimped? can we have crimped? can you have crimped? can they have crimped?
V-ing perfect
can I have been crimping? can you have been crimping? can she have been crimping? can we have been crimping? can you have been crimping? can they have been crimping?
Interro-negative form
Simple form
can I not crimp? can you not crimp? can she not crimp? can we not crimp? can you not crimp? can they not crimp?
V-ing form
can I not be crimping? can you not be crimping? can she not be crimping? can we not be crimping? can you not be crimping? can they not be crimping?
Perfect
can I not have crimped? can you not have crimped? can she not have crimped? can we not have crimped? can you not have crimped? can they not have crimped?
V-ing perfect
can I not have been crimping? can you not have been crimping? can she not have been crimping? can we not have been crimping? can you not have been crimping? can they not have been crimping?