must overpower
Regular verb: overpower - overpowered- overpowered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must overpower
you must overpower
he must overpower
we must overpower
you must overpower
they must overpower 	I must be overpowering
you must be overpowering
he must be overpowering
we must be overpowering
you must be overpowering
they must be overpowering	I must have overpowered
you must have overpowered
he must have overpowered
we must have overpowered
you must have overpowered
they must have overpowered	I must have been overpowering
you must have been overpowering
he must have been overpowering
we must have been overpowering
you must have been overpowering
they must have been overpowering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't overpower
you mustn't overpower
he mustn't overpower
we mustn't overpower
you mustn't overpower
they mustn't overpower 	I mustn't be overpowering
you mustn't be overpowering
he mustn't be overpowering
we mustn't be overpowering
you mustn't be overpowering
they mustn't be overpowering	I mustn't have overpowered
you mustn't have overpowered
he mustn't have overpowered
we mustn't have overpowered
you mustn't have overpowered
they mustn't have overpowered	I mustn't have been overpowering
you mustn't have been overpowering
he mustn't have been overpowering
we mustn't have been overpowering
you mustn't have been overpowering
they mustn't have been overpowering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I overpower?
must you overpower?
must he overpower?
must we overpower?
must you overpower?
must they overpower? 	must I be overpowering?
must you be overpowering?
must he be overpowering?
must we be overpowering?
must you be overpowering?
must they be overpowering? 	must I have overpowered?
must you have overpowered?
must he have overpowered?
must we have overpowered?
must you have overpowered?
must they have overpowered? 	must I have been overpowering?
must you have been overpowering?
must he have been overpowering?
must we have been overpowering?
must you have been overpowering?
must they have been overpowering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I overpower?
mustn't you overpower?
mustn't he overpower?
mustn't we overpower?
mustn't you overpower?
mustn't they overpower? 	mustn't I be overpowering?
mustn't you be overpowering?
mustn't he be overpowering?
mustn't we be overpowering?
mustn't you be overpowering?
mustn't they be overpowering? 	mustn't I have overpowered?
mustn't you have overpowered?
mustn't he have overpowered?
mustn't we have overpowered?
mustn't you have overpowered?
mustn't they have overpowered? 	mustn't I have been overpowering?
mustn't you have been overpowering?
mustn't he have been overpowering?
mustn't we have been overpowering?
mustn't you have been overpowering?
mustn't they have been overpowering?