must parachute
Regular verb: parachute - parachuted- parachuted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must parachute
you must parachute
he must parachute
we must parachute
you must parachute
they must parachute 	I must be parachuting
you must be parachuting
he must be parachuting
we must be parachuting
you must be parachuting
they must be parachuting	I must have parachuted
you must have parachuted
he must have parachuted
we must have parachuted
you must have parachuted
they must have parachuted	I must have been parachuting
you must have been parachuting
he must have been parachuting
we must have been parachuting
you must have been parachuting
they must have been parachuting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not parachute
you must not parachute
he must not parachute
we must not parachute
you must not parachute
they must not parachute 	I must not be parachuting
you must not be parachuting
he must not be parachuting
we must not be parachuting
you must not be parachuting
they must not be parachuting	I must not have parachuted
you must not have parachuted
he must not have parachuted
we must not have parachuted
you must not have parachuted
they must not have parachuted	I must not have been parachuting
you must not have been parachuting
he must not have been parachuting
we must not have been parachuting
you must not have been parachuting
they must not have been parachuting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I parachute?
must you parachute?
must he parachute?
must we parachute?
must you parachute?
must they parachute? 	must I be parachuting?
must you be parachuting?
must he be parachuting?
must we be parachuting?
must you be parachuting?
must they be parachuting? 	must I have parachuted?
must you have parachuted?
must he have parachuted?
must we have parachuted?
must you have parachuted?
must they have parachuted? 	must I have been parachuting?
must you have been parachuting?
must he have been parachuting?
must we have been parachuting?
must you have been parachuting?
must they have been parachuting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not parachute?
must you not parachute?
must he not parachute?
must we not parachute?
must you not parachute?
must they not parachute? 	must I not be parachuting?
must you not be parachuting?
must he not be parachuting?
must we not be parachuting?
must you not be parachuting?
must they not be parachuting? 	must I not have parachuted?
must you not have parachuted?
must he not have parachuted?
must we not have parachuted?
must you not have parachuted?
must they not have parachuted? 	must I not have been parachuting?
must you not have been parachuting?
must he not have been parachuting?
must we not have been parachuting?
must you not have been parachuting?
must they not have been parachuting?