must power
Regular verb: power - powered- powered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must power
you must power
she must power
we must power
you must power
they must power 	I must be powering
you must be powering
she must be powering
we must be powering
you must be powering
they must be powering	I must have powered
you must have powered
she must have powered
we must have powered
you must have powered
they must have powered	I must have been powering
you must have been powering
she must have been powering
we must have been powering
you must have been powering
they must have been powering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't power
you mustn't power
she mustn't power
we mustn't power
you mustn't power
they mustn't power 	I mustn't be powering
you mustn't be powering
she mustn't be powering
we mustn't be powering
you mustn't be powering
they mustn't be powering	I mustn't have powered
you mustn't have powered
she mustn't have powered
we mustn't have powered
you mustn't have powered
they mustn't have powered	I mustn't have been powering
you mustn't have been powering
she mustn't have been powering
we mustn't have been powering
you mustn't have been powering
they mustn't have been powering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I power?
must you power?
must she power?
must we power?
must you power?
must they power? 	must I be powering?
must you be powering?
must she be powering?
must we be powering?
must you be powering?
must they be powering? 	must I have powered?
must you have powered?
must she have powered?
must we have powered?
must you have powered?
must they have powered? 	must I have been powering?
must you have been powering?
must she have been powering?
must we have been powering?
must you have been powering?
must they have been powering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I power?
mustn't you power?
mustn't she power?
mustn't we power?
mustn't you power?
mustn't they power? 	mustn't I be powering?
mustn't you be powering?
mustn't she be powering?
mustn't we be powering?
mustn't you be powering?
mustn't they be powering? 	mustn't I have powered?
mustn't you have powered?
mustn't she have powered?
mustn't we have powered?
mustn't you have powered?
mustn't they have powered? 	mustn't I have been powering?
mustn't you have been powering?
mustn't she have been powering?
mustn't we have been powering?
mustn't you have been powering?
mustn't they have been powering?