English verb conjugation
MUST CRIMP

Regular verb: crimp - crimped - crimped

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?