must retract
Regular verb: retract - retracted- retracted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must retract
you must retract
he must retract
we must retract
you must retract
they must retract 	I must be retracting
you must be retracting
he must be retracting
we must be retracting
you must be retracting
they must be retracting	I must have retracted
you must have retracted
he must have retracted
we must have retracted
you must have retracted
they must have retracted	I must have been retracting
you must have been retracting
he must have been retracting
we must have been retracting
you must have been retracting
they must have been retracting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not retract
you must not retract
he must not retract
we must not retract
you must not retract
they must not retract 	I must not be retracting
you must not be retracting
he must not be retracting
we must not be retracting
you must not be retracting
they must not be retracting	I must not have retracted
you must not have retracted
he must not have retracted
we must not have retracted
you must not have retracted
they must not have retracted	I must not have been retracting
you must not have been retracting
he must not have been retracting
we must not have been retracting
you must not have been retracting
they must not have been retracting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I retract?
must you retract?
must he retract?
must we retract?
must you retract?
must they retract? 	must I be retracting?
must you be retracting?
must he be retracting?
must we be retracting?
must you be retracting?
must they be retracting? 	must I have retracted?
must you have retracted?
must he have retracted?
must we have retracted?
must you have retracted?
must they have retracted? 	must I have been retracting?
must you have been retracting?
must he have been retracting?
must we have been retracting?
must you have been retracting?
must they have been retracting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not retract?
must you not retract?
must he not retract?
must we not retract?
must you not retract?
must they not retract? 	must I not be retracting?
must you not be retracting?
must he not be retracting?
must we not be retracting?
must you not be retracting?
must they not be retracting? 	must I not have retracted?
must you not have retracted?
must he not have retracted?
must we not have retracted?
must you not have retracted?
must they not have retracted? 	must I not have been retracting?
must you not have been retracting?
must he not have been retracting?
must we not have been retracting?
must you not have been retracting?
must they not have been retracting?