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 mustn't dispel you mustn't dispel she mustn't dispel we mustn't dispel you mustn't dispel they mustn't dispel
V-ing form
I mustn't be dispelling you mustn't be dispelling she mustn't be dispelling we mustn't be dispelling you mustn't be dispelling they mustn't be dispelling
Perfect
I mustn't have dispelled you mustn't have dispelled she mustn't have dispelled we mustn't have dispelled you mustn't have dispelled they mustn't have dispelled
V-ing perfect
I mustn't have been dispelling you mustn't have been dispelling she mustn't have been dispelling we mustn't have been dispelling you mustn't have been dispelling they mustn't 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
mustn't I dispel? mustn't you dispel? mustn't she dispel? mustn't we dispel? mustn't you dispel? mustn't they dispel?
V-ing form
mustn't I be dispelling? mustn't you be dispelling? mustn't she be dispelling? mustn't we be dispelling? mustn't you be dispelling? mustn't they be dispelling?
Perfect
mustn't I have dispelled? mustn't you have dispelled? mustn't she have dispelled? mustn't we have dispelled? mustn't you have dispelled? mustn't they have dispelled?
V-ing perfect
mustn't I have been dispelling? mustn't you have been dispelling? mustn't she have been dispelling? mustn't we have been dispelling? mustn't you have been dispelling? mustn't they have been dispelling?