must regulate
Regular verb: regulate - regulated- regulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must regulate
you must regulate
she must regulate
we must regulate
you must regulate
they must regulate 	I must be regulating
you must be regulating
she must be regulating
we must be regulating
you must be regulating
they must be regulating	I must have regulated
you must have regulated
she must have regulated
we must have regulated
you must have regulated
they must have regulated	I must have been regulating
you must have been regulating
she must have been regulating
we must have been regulating
you must have been regulating
they must have been regulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't regulate
you mustn't regulate
she mustn't regulate
we mustn't regulate
you mustn't regulate
they mustn't regulate 	I mustn't be regulating
you mustn't be regulating
she mustn't be regulating
we mustn't be regulating
you mustn't be regulating
they mustn't be regulating	I mustn't have regulated
you mustn't have regulated
she mustn't have regulated
we mustn't have regulated
you mustn't have regulated
they mustn't have regulated	I mustn't have been regulating
you mustn't have been regulating
she mustn't have been regulating
we mustn't have been regulating
you mustn't have been regulating
they mustn't have been regulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I regulate?
must you regulate?
must she regulate?
must we regulate?
must you regulate?
must they regulate? 	must I be regulating?
must you be regulating?
must she be regulating?
must we be regulating?
must you be regulating?
must they be regulating? 	must I have regulated?
must you have regulated?
must she have regulated?
must we have regulated?
must you have regulated?
must they have regulated? 	must I have been regulating?
must you have been regulating?
must she have been regulating?
must we have been regulating?
must you have been regulating?
must they have been regulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I regulate?
mustn't you regulate?
mustn't she regulate?
mustn't we regulate?
mustn't you regulate?
mustn't they regulate? 	mustn't I be regulating?
mustn't you be regulating?
mustn't she be regulating?
mustn't we be regulating?
mustn't you be regulating?
mustn't they be regulating? 	mustn't I have regulated?
mustn't you have regulated?
mustn't she have regulated?
mustn't we have regulated?
mustn't you have regulated?
mustn't they have regulated? 	mustn't I have been regulating?
mustn't you have been regulating?
mustn't she have been regulating?
mustn't we have been regulating?
mustn't you have been regulating?
mustn't they have been regulating?