I must convolute you must convolute he must convolute we must convolute you must convolute they must convolute
V-ing form
I must be convoluting you must be convoluting he must be convoluting we must be convoluting you must be convoluting they must be convoluting
Perfect
I must have convoluted you must have convoluted he must have convoluted we must have convoluted you must have convoluted they must have convoluted
V-ing perfect
I must have been convoluting you must have been convoluting he must have been convoluting we must have been convoluting you must have been convoluting they must have been convoluting
Negation
Simple form
I mustn't convolute you mustn't convolute he mustn't convolute we mustn't convolute you mustn't convolute they mustn't convolute
V-ing form
I mustn't be convoluting you mustn't be convoluting he mustn't be convoluting we mustn't be convoluting you mustn't be convoluting they mustn't be convoluting
Perfect
I mustn't have convoluted you mustn't have convoluted he mustn't have convoluted we mustn't have convoluted you mustn't have convoluted they mustn't have convoluted
V-ing perfect
I mustn't have been convoluting you mustn't have been convoluting he mustn't have been convoluting we mustn't have been convoluting you mustn't have been convoluting they mustn't have been convoluting
Interrogative form
Simple form
must I convolute? must you convolute? must he convolute? must we convolute? must you convolute? must they convolute?
V-ing form
must I be convoluting? must you be convoluting? must he be convoluting? must we be convoluting? must you be convoluting? must they be convoluting?
Perfect
must I have convoluted? must you have convoluted? must he have convoluted? must we have convoluted? must you have convoluted? must they have convoluted?
V-ing perfect
must I have been convoluting? must you have been convoluting? must he have been convoluting? must we have been convoluting? must you have been convoluting? must they have been convoluting?
Interro-negative form
Simple form
mustn't I convolute? mustn't you convolute? mustn't he convolute? mustn't we convolute? mustn't you convolute? mustn't they convolute?
V-ing form
mustn't I be convoluting? mustn't you be convoluting? mustn't he be convoluting? mustn't we be convoluting? mustn't you be convoluting? mustn't they be convoluting?
Perfect
mustn't I have convoluted? mustn't you have convoluted? mustn't he have convoluted? mustn't we have convoluted? mustn't you have convoluted? mustn't they have convoluted?
V-ing perfect
mustn't I have been convoluting? mustn't you have been convoluting? mustn't he have been convoluting? mustn't we have been convoluting? mustn't you have been convoluting? mustn't they have been convoluting?