English verb conjugation
MUST COMMENCER

Regular verb: commencer - commencered - commencered

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must commencer you must commencer he must commencer we must commencer you must commencer they must commencer	I must be commencering you must be commencering he must be commencering we must be commencering you must be commencering they must be commencering
Perfect	V-ing perfect
I must have commencered you must have commencered he 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 he must have been commencering we must have been commencering you must have been commencering they must have been commencering

Negation

Simple form	V-ing form
I must not commencer you must not commencer he must not commencer we must not commencer you must not commencer they must not commencer	I must not be commencering you must not be commencering he must not be commencering we must not be commencering you must not be commencering they must not be commencering
Perfect	V-ing perfect
I must not have commencered you must not have commencered he must not have commencered we must not have commencered you must not have commencered they must not have commencered	I must not have been commencering you must not have been commencering he must not have been commencering we must not have been commencering you must not have been commencering they must not have been commencering

Interrogative form

Simple form	V-ing form
must I commencer? must you commencer? must he commencer? must we commencer? must you commencer? must they commencer?	must I be commencering? must you be commencering? must he be commencering? must we be commencering? must you be commencering? must they be commencering?
Perfect	V-ing perfect
must I have commencered? must you have commencered? must he 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 he have been commencering? must we have been commencering? must you have been commencering? must they have been commencering?

Interro-negative form

Simple form	V-ing form
must I not commencer? must you not commencer? must he not commencer? must we not commencer? must you not commencer? must they not commencer?	must I not be commencering? must you not be commencering? must he not be commencering? must we not be commencering? must you not be commencering? must they not be commencering?
Perfect	V-ing perfect
must I not have commencered? must you not have commencered? must he not have commencered? must we not have commencered? must you not have commencered? must they not have commencered?	must I not have been commencering? must you not have been commencering? must he not have been commencering? must we not have been commencering? must you not have been commencering? must they not have been commencering?