I must dispel you must dispel she must dispel we must dispel you must dispel they must dispel
V-ing form
I must be dispelling you must be dispelling she must be dispelling we must be dispelling you must be dispelling they must be dispelling
Perfect
I must have dispelled you must have dispelled she must have dispelled we must have dispelled you must have dispelled they must have dispelled
V-ing perfect
I must have been dispelling you must have been dispelling she must have been dispelling we must have been dispelling you must have been dispelling they must have been dispelling
Negation
Simple form
I must not dispel you must not dispel she must not dispel we must not dispel you must not dispel they must not dispel
V-ing form
I must not be dispelling you must not be dispelling she must not be dispelling we must not be dispelling you must not be dispelling they must not be dispelling
Perfect
I must not have dispelled you must not have dispelled she must not have dispelled we must not have dispelled you must not have dispelled they must not have dispelled
V-ing perfect
I must not have been dispelling you must not have been dispelling she must not have been dispelling we must not have been dispelling you must not have been dispelling they must not have been dispelling
Interrogative form
Simple form
must I dispel? must you dispel? must she dispel? must we dispel? must you dispel? must they dispel?
V-ing form
must I be dispelling? must you be dispelling? must she be dispelling? must we be dispelling? must you be dispelling? must they be dispelling?
Perfect
must I have dispelled? must you have dispelled? must she have dispelled? must we have dispelled? must you have dispelled? must they have dispelled?
V-ing perfect
must I have been dispelling? must you have been dispelling? must she have been dispelling? must we have been dispelling? must you have been dispelling? must they have been dispelling?
Interro-negative form
Simple form
must I not dispel? must you not dispel? must she not dispel? must we not dispel? must you not dispel? must they not dispel?
V-ing form
must I not be dispelling? must you not be dispelling? must she not be dispelling? must we not be dispelling? must you not be dispelling? must they not be dispelling?
Perfect
must I not have dispelled? must you not have dispelled? must she not have dispelled? must we not have dispelled? must you not have dispelled? must they not have dispelled?
V-ing perfect
must I not have been dispelling? must you not have been dispelling? must she not have been dispelling? must we not have been dispelling? must you not have been dispelling? must they not have been dispelling?