must berate
Regular verb: berate - berated- berated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must berate
you must berate
he must berate
we must berate
you must berate
they must berate 	I must be berating
you must be berating
he must be berating
we must be berating
you must be berating
they must be berating	I must have berated
you must have berated
he must have berated
we must have berated
you must have berated
they must have berated	I must have been berating
you must have been berating
he must have been berating
we must have been berating
you must have been berating
they must have been berating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't berate
you mustn't berate
he mustn't berate
we mustn't berate
you mustn't berate
they mustn't berate 	I mustn't be berating
you mustn't be berating
he mustn't be berating
we mustn't be berating
you mustn't be berating
they mustn't be berating	I mustn't have berated
you mustn't have berated
he mustn't have berated
we mustn't have berated
you mustn't have berated
they mustn't have berated	I mustn't have been berating
you mustn't have been berating
he mustn't have been berating
we mustn't have been berating
you mustn't have been berating
they mustn't have been berating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I berate?
must you berate?
must he berate?
must we berate?
must you berate?
must they berate? 	must I be berating?
must you be berating?
must he be berating?
must we be berating?
must you be berating?
must they be berating? 	must I have berated?
must you have berated?
must he have berated?
must we have berated?
must you have berated?
must they have berated? 	must I have been berating?
must you have been berating?
must he have been berating?
must we have been berating?
must you have been berating?
must they have been berating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I berate?
mustn't you berate?
mustn't he berate?
mustn't we berate?
mustn't you berate?
mustn't they berate? 	mustn't I be berating?
mustn't you be berating?
mustn't he be berating?
mustn't we be berating?
mustn't you be berating?
mustn't they be berating? 	mustn't I have berated?
mustn't you have berated?
mustn't he have berated?
mustn't we have berated?
mustn't you have berated?
mustn't they have berated? 	mustn't I have been berating?
mustn't you have been berating?
mustn't he have been berating?
mustn't we have been berating?
mustn't you have been berating?
mustn't they have been berating?