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