must crimp
Regular verb: crimp - crimped- crimped

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

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

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

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