Conjugación del verbo inglés
MUST COMMENCE

Verbo regular: commence - commenced - commenced

Afirmación

Forma simple	Forma con V-ing
I must commence you must commence he must commence we must commence you must commence they must commence	I must be commencing you must be commencing he must be commencing we must be commencing you must be commencing they must be commencing
Perfecto	Perfecto con V-ing
I must have commenced you must have commenced he must have commenced we must have commenced you must have commenced they must have commenced	I must have been commencing you must have been commencing he must have been commencing we must have been commencing you must have been commencing they must have been commencing

Negación

Forma simple	Forma con V-ing
I mustn't commence you mustn't commence he mustn't commence we mustn't commence you mustn't commence they mustn't commence	I mustn't be commencing you mustn't be commencing he mustn't be commencing we mustn't be commencing you mustn't be commencing they mustn't be commencing
Perfecto	Perfecto con V-ing
I mustn't have commenced you mustn't have commenced he mustn't have commenced we mustn't have commenced you mustn't have commenced they mustn't have commenced	I mustn't have been commencing you mustn't have been commencing he mustn't have been commencing we mustn't have been commencing you mustn't have been commencing they mustn't have been commencing

Forma interrogativa

Forma simple	Forma con V-ing
must I commence? must you commence? must he commence? must we commence? must you commence? must they commence?	must I be commencing? must you be commencing? must he be commencing? must we be commencing? must you be commencing? must they be commencing?
Perfecto	Perfecto con V-ing
must I have commenced? must you have commenced? must he have commenced? must we have commenced? must you have commenced? must they have commenced?	must I have been commencing? must you have been commencing? must he have been commencing? must we have been commencing? must you have been commencing? must they have been commencing?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I commence? mustn't you commence? mustn't he commence? mustn't we commence? mustn't you commence? mustn't they commence?	mustn't I be commencing? mustn't you be commencing? mustn't he be commencing? mustn't we be commencing? mustn't you be commencing? mustn't they be commencing?
Perfecto	Perfecto con V-ing
mustn't I have commenced? mustn't you have commenced? mustn't he have commenced? mustn't we have commenced? mustn't you have commenced? mustn't they have commenced?	mustn't I have been commencing? mustn't you have been commencing? mustn't he have been commencing? mustn't we have been commencing? mustn't you have been commencing? mustn't they have been commencing?