Conjugación del verbo inglés
MUST LISTEN

Verbo regular: listen - listened - listened

Afirmación

Forma simple	Forma con V-ing
I must listen you must listen he must listen we must listen you must listen they must listen	I must be listening you must be listening he must be listening we must be listening you must be listening they must be listening
Perfecto	Perfecto con V-ing
I must have listened you must have listened he must have listened we must have listened you must have listened they must have listened	I must have been listening you must have been listening he must have been listening we must have been listening you must have been listening they must have been listening

Negación

Forma simple	Forma con V-ing
I must not listen you must not listen he must not listen we must not listen you must not listen they must not listen	I must not be listening you must not be listening he must not be listening we must not be listening you must not be listening they must not be listening
Perfecto	Perfecto con V-ing
I must not have listened you must not have listened he must not have listened we must not have listened you must not have listened they must not have listened	I must not have been listening you must not have been listening he must not have been listening we must not have been listening you must not have been listening they must not have been listening

Forma interrogativa

Forma simple	Forma con V-ing
must I listen? must you listen? must he listen? must we listen? must you listen? must they listen?	must I be listening? must you be listening? must he be listening? must we be listening? must you be listening? must they be listening?
Perfecto	Perfecto con V-ing
must I have listened? must you have listened? must he have listened? must we have listened? must you have listened? must they have listened?	must I have been listening? must you have been listening? must he have been listening? must we have been listening? must you have been listening? must they have been listening?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not listen? must you not listen? must he not listen? must we not listen? must you not listen? must they not listen?	must I not be listening? must you not be listening? must he not be listening? must we not be listening? must you not be listening? must they not be listening?
Perfecto	Perfecto con V-ing
must I not have listened? must you not have listened? must he not have listened? must we not have listened? must you not have listened? must they not have listened?	must I not have been listening? must you not have been listening? must he not have been listening? must we not have been listening? must you not have been listening? must they not have been listening?