must propel
Regular verb: propel - propelled- propelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must propel
you must propel
he must propel
we must propel
you must propel
they must propel 	I must be propelling
you must be propelling
he must be propelling
we must be propelling
you must be propelling
they must be propelling	I must have propelled
you must have propelled
he must have propelled
we must have propelled
you must have propelled
they must have propelled	I must have been propelling
you must have been propelling
he must have been propelling
we must have been propelling
you must have been propelling
they must have been propelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not propel
you must not propel
he must not propel
we must not propel
you must not propel
they must not propel 	I must not be propelling
you must not be propelling
he must not be propelling
we must not be propelling
you must not be propelling
they must not be propelling	I must not have propelled
you must not have propelled
he must not have propelled
we must not have propelled
you must not have propelled
they must not have propelled	I must not have been propelling
you must not have been propelling
he must not have been propelling
we must not have been propelling
you must not have been propelling
they must not have been propelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I propel?
must you propel?
must he propel?
must we propel?
must you propel?
must they propel? 	must I be propelling?
must you be propelling?
must he be propelling?
must we be propelling?
must you be propelling?
must they be propelling? 	must I have propelled?
must you have propelled?
must he have propelled?
must we have propelled?
must you have propelled?
must they have propelled? 	must I have been propelling?
must you have been propelling?
must he have been propelling?
must we have been propelling?
must you have been propelling?
must they have been propelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not propel?
must you not propel?
must he not propel?
must we not propel?
must you not propel?
must they not propel? 	must I not be propelling?
must you not be propelling?
must he not be propelling?
must we not be propelling?
must you not be propelling?
must they not be propelling? 	must I not have propelled?
must you not have propelled?
must he not have propelled?
must we not have propelled?
must you not have propelled?
must they not have propelled? 	must I not have been propelling?
must you not have been propelling?
must he not have been propelling?
must we not have been propelling?
must you not have been propelling?
must they not have been propelling?