could crimp
Regular verb: crimp - crimped- crimped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could crimp
you could crimp
he could crimp
we could crimp
you could crimp
they could crimp 	I could be crimping
you could be crimping
he could be crimping
we could be crimping
you could be crimping
they could be crimping	I could have crimped
you could have crimped
he could have crimped
we could have crimped
you could have crimped
they could have crimped	I could have been crimping
you could have been crimping
he could have been crimping
we could have been crimping
you could have been crimping
they could have been crimping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't crimp
you couldn't crimp
he couldn't crimp
we couldn't crimp
you couldn't crimp
they couldn't crimp 	I couldn't be crimping
you couldn't be crimping
he couldn't be crimping
we couldn't be crimping
you couldn't be crimping
they couldn't be crimping	I couldn't have crimped
you couldn't have crimped
he couldn't have crimped
we couldn't have crimped
you couldn't have crimped
they couldn't have crimped	I couldn't have been crimping
you couldn't have been crimping
he couldn't have been crimping
we couldn't have been crimping
you couldn't have been crimping
they couldn't have been crimping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I crimp?
could you crimp?
could he crimp?
could we crimp?
could you crimp?
could they crimp? 	could I be crimping?
could you be crimping?
could he be crimping?
could we be crimping?
could you be crimping?
could they be crimping? 	could I have crimped?
could you have crimped?
could he have crimped?
could we have crimped?
could you have crimped?
could they have crimped? 	could I have been crimping?
could you have been crimping?
could he have been crimping?
could we have been crimping?
could you have been crimping?
could they have been crimping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I crimp?
couldn't you crimp?
couldn't he crimp?
couldn't we crimp?
couldn't you crimp?
couldn't they crimp? 	couldn't I be crimping?
couldn't you be crimping?
couldn't he be crimping?
couldn't we be crimping?
couldn't you be crimping?
couldn't they be crimping? 	couldn't I have crimped?
couldn't you have crimped?
couldn't he have crimped?
couldn't we have crimped?
couldn't you have crimped?
couldn't they have crimped? 	couldn't I have been crimping?
couldn't you have been crimping?
couldn't he have been crimping?
couldn't we have been crimping?
couldn't you have been crimping?
couldn't they have been crimping?