must irrupt
Regular verb: irrupt - irrupted- irrupted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must irrupt
you must irrupt
she must irrupt
we must irrupt
you must irrupt
they must irrupt 	I must be irrupting
you must be irrupting
she must be irrupting
we must be irrupting
you must be irrupting
they must be irrupting	I must have irrupted
you must have irrupted
she must have irrupted
we must have irrupted
you must have irrupted
they must have irrupted	I must have been irrupting
you must have been irrupting
she must have been irrupting
we must have been irrupting
you must have been irrupting
they must have been irrupting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't irrupt
you mustn't irrupt
she mustn't irrupt
we mustn't irrupt
you mustn't irrupt
they mustn't irrupt 	I mustn't be irrupting
you mustn't be irrupting
she mustn't be irrupting
we mustn't be irrupting
you mustn't be irrupting
they mustn't be irrupting	I mustn't have irrupted
you mustn't have irrupted
she mustn't have irrupted
we mustn't have irrupted
you mustn't have irrupted
they mustn't have irrupted	I mustn't have been irrupting
you mustn't have been irrupting
she mustn't have been irrupting
we mustn't have been irrupting
you mustn't have been irrupting
they mustn't have been irrupting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I irrupt?
must you irrupt?
must she irrupt?
must we irrupt?
must you irrupt?
must they irrupt? 	must I be irrupting?
must you be irrupting?
must she be irrupting?
must we be irrupting?
must you be irrupting?
must they be irrupting? 	must I have irrupted?
must you have irrupted?
must she have irrupted?
must we have irrupted?
must you have irrupted?
must they have irrupted? 	must I have been irrupting?
must you have been irrupting?
must she have been irrupting?
must we have been irrupting?
must you have been irrupting?
must they have been irrupting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I irrupt?
mustn't you irrupt?
mustn't she irrupt?
mustn't we irrupt?
mustn't you irrupt?
mustn't they irrupt? 	mustn't I be irrupting?
mustn't you be irrupting?
mustn't she be irrupting?
mustn't we be irrupting?
mustn't you be irrupting?
mustn't they be irrupting? 	mustn't I have irrupted?
mustn't you have irrupted?
mustn't she have irrupted?
mustn't we have irrupted?
mustn't you have irrupted?
mustn't they have irrupted? 	mustn't I have been irrupting?
mustn't you have been irrupting?
mustn't she have been irrupting?
mustn't we have been irrupting?
mustn't you have been irrupting?
mustn't they have been irrupting?