must restrain
Regular verb: restrain - restrained- restrained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must restrain
you must restrain
he must restrain
we must restrain
you must restrain
they must restrain 	I must be restraining
you must be restraining
he must be restraining
we must be restraining
you must be restraining
they must be restraining	I must have restrained
you must have restrained
he must have restrained
we must have restrained
you must have restrained
they must have restrained	I must have been restraining
you must have been restraining
he must have been restraining
we must have been restraining
you must have been restraining
they must have been restraining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't restrain
you mustn't restrain
he mustn't restrain
we mustn't restrain
you mustn't restrain
they mustn't restrain 	I mustn't be restraining
you mustn't be restraining
he mustn't be restraining
we mustn't be restraining
you mustn't be restraining
they mustn't be restraining	I mustn't have restrained
you mustn't have restrained
he mustn't have restrained
we mustn't have restrained
you mustn't have restrained
they mustn't have restrained	I mustn't have been restraining
you mustn't have been restraining
he mustn't have been restraining
we mustn't have been restraining
you mustn't have been restraining
they mustn't have been restraining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I restrain?
must you restrain?
must he restrain?
must we restrain?
must you restrain?
must they restrain? 	must I be restraining?
must you be restraining?
must he be restraining?
must we be restraining?
must you be restraining?
must they be restraining? 	must I have restrained?
must you have restrained?
must he have restrained?
must we have restrained?
must you have restrained?
must they have restrained? 	must I have been restraining?
must you have been restraining?
must he have been restraining?
must we have been restraining?
must you have been restraining?
must they have been restraining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I restrain?
mustn't you restrain?
mustn't he restrain?
mustn't we restrain?
mustn't you restrain?
mustn't they restrain? 	mustn't I be restraining?
mustn't you be restraining?
mustn't he be restraining?
mustn't we be restraining?
mustn't you be restraining?
mustn't they be restraining? 	mustn't I have restrained?
mustn't you have restrained?
mustn't he have restrained?
mustn't we have restrained?
mustn't you have restrained?
mustn't they have restrained? 	mustn't I have been restraining?
mustn't you have been restraining?
mustn't he have been restraining?
mustn't we have been restraining?
mustn't you have been restraining?
mustn't they have been restraining?