must dis
Regular verb: dis - dised- dised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must dis
you must dis
she must dis
we must dis
you must dis
they must dis 	I must be dising
you must be dising
she must be dising
we must be dising
you must be dising
they must be dising	I must have dised
you must have dised
she must have dised
we must have dised
you must have dised
they must have dised	I must have been dising
you must have been dising
she must have been dising
we must have been dising
you must have been dising
they must have been dising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't dis
you mustn't dis
she mustn't dis
we mustn't dis
you mustn't dis
they mustn't dis 	I mustn't be dising
you mustn't be dising
she mustn't be dising
we mustn't be dising
you mustn't be dising
they mustn't be dising	I mustn't have dised
you mustn't have dised
she mustn't have dised
we mustn't have dised
you mustn't have dised
they mustn't have dised	I mustn't have been dising
you mustn't have been dising
she mustn't have been dising
we mustn't have been dising
you mustn't have been dising
they mustn't have been dising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I dis?
must you dis?
must she dis?
must we dis?
must you dis?
must they dis? 	must I be dising?
must you be dising?
must she be dising?
must we be dising?
must you be dising?
must they be dising? 	must I have dised?
must you have dised?
must she have dised?
must we have dised?
must you have dised?
must they have dised? 	must I have been dising?
must you have been dising?
must she have been dising?
must we have been dising?
must you have been dising?
must they have been dising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I dis?
mustn't you dis?
mustn't she dis?
mustn't we dis?
mustn't you dis?
mustn't they dis? 	mustn't I be dising?
mustn't you be dising?
mustn't she be dising?
mustn't we be dising?
mustn't you be dising?
mustn't they be dising? 	mustn't I have dised?
mustn't you have dised?
mustn't she have dised?
mustn't we have dised?
mustn't you have dised?
mustn't they have dised? 	mustn't I have been dising?
mustn't you have been dising?
mustn't she have been dising?
mustn't we have been dising?
mustn't you have been dising?
mustn't they have been dising?