English verb conjugation
MUST IMP

Regular verb: imp - imped - imped

Affirmation

Simple form	V-ing form
I must imp you must imp he must imp we must imp you must imp they must imp	I must be imping you must be imping he must be imping we must be imping you must be imping they must be imping
Perfect	V-ing perfect
I must have imped you must have imped he must have imped we must have imped you must have imped they must have imped	I must have been imping you must have been imping he must have been imping we must have been imping you must have been imping they must have been imping

Negation

Simple form	V-ing form
I mustn't imp you mustn't imp he mustn't imp we mustn't imp you mustn't imp they mustn't imp	I mustn't be imping you mustn't be imping he mustn't be imping we mustn't be imping you mustn't be imping they mustn't be imping
Perfect	V-ing perfect
I mustn't have imped you mustn't have imped he mustn't have imped we mustn't have imped you mustn't have imped they mustn't have imped	I mustn't have been imping you mustn't have been imping he mustn't have been imping we mustn't have been imping you mustn't have been imping they mustn't have been imping

Interrogative form

Simple form	V-ing form
must I imp? must you imp? must he imp? must we imp? must you imp? must they imp?	must I be imping? must you be imping? must he be imping? must we be imping? must you be imping? must they be imping?
Perfect	V-ing perfect
must I have imped? must you have imped? must he have imped? must we have imped? must you have imped? must they have imped?	must I have been imping? must you have been imping? must he have been imping? must we have been imping? must you have been imping? must they have been imping?

Interro-negative form

Simple form	V-ing form
mustn't I imp? mustn't you imp? mustn't he imp? mustn't we imp? mustn't you imp? mustn't they imp?	mustn't I be imping? mustn't you be imping? mustn't he be imping? mustn't we be imping? mustn't you be imping? mustn't they be imping?
Perfect	V-ing perfect
mustn't I have imped? mustn't you have imped? mustn't he have imped? mustn't we have imped? mustn't you have imped? mustn't they have imped?	mustn't I have been imping? mustn't you have been imping? mustn't he have been imping? mustn't we have been imping? mustn't you have been imping? mustn't they have been imping?