must commencer
Verbo regular: commencer - commencered- commencered

ón, este verbo puede no existir, se da como ejemplo la conjugación.

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must commencer
you must commencer
she must commencer
we must commencer
you must commencer
they must commencer 	I must be commencering
you must be commencering
she must be commencering
we must be commencering
you must be commencering
they must be commencering	I must have commencered
you must have commencered
she must have commencered
we must have commencered
you must have commencered
they must have commencered	I must have been commencering
you must have been commencering
she must have been commencering
we must have been commencering
you must have been commencering
they must have been commencering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't commencer
you mustn't commencer
she mustn't commencer
we mustn't commencer
you mustn't commencer
they mustn't commencer 	I mustn't be commencering
you mustn't be commencering
she mustn't be commencering
we mustn't be commencering
you mustn't be commencering
they mustn't be commencering	I mustn't have commencered
you mustn't have commencered
she mustn't have commencered
we mustn't have commencered
you mustn't have commencered
they mustn't have commencered	I mustn't have been commencering
you mustn't have been commencering
she mustn't have been commencering
we mustn't have been commencering
you mustn't have been commencering
they mustn't have been commencering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I commencer?
must you commencer?
must she commencer?
must we commencer?
must you commencer?
must they commencer? 	must I be commencering?
must you be commencering?
must she be commencering?
must we be commencering?
must you be commencering?
must they be commencering? 	must I have commencered?
must you have commencered?
must she have commencered?
must we have commencered?
must you have commencered?
must they have commencered? 	must I have been commencering?
must you have been commencering?
must she have been commencering?
must we have been commencering?
must you have been commencering?
must they have been commencering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I commencer?
mustn't you commencer?
mustn't she commencer?
mustn't we commencer?
mustn't you commencer?
mustn't they commencer? 	mustn't I be commencering?
mustn't you be commencering?
mustn't she be commencering?
mustn't we be commencering?
mustn't you be commencering?
mustn't they be commencering? 	mustn't I have commencered?
mustn't you have commencered?
mustn't she have commencered?
mustn't we have commencered?
mustn't you have commencered?
mustn't they have commencered? 	mustn't I have been commencering?
mustn't you have been commencering?
mustn't she have been commencering?
mustn't we have been commencering?
mustn't you have been commencering?
mustn't they have been commencering?