must listen
Verbo regolare: listen - listened- listened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto 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	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	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't listen
you mustn't listen
he mustn't listen
we mustn't listen
you mustn't listen
they mustn't listen 	I mustn't be listening
you mustn't be listening
he mustn't be listening
we mustn't be listening
you mustn't be listening
they mustn't be listening	I mustn't have listened
you mustn't have listened
he mustn't have listened
we mustn't have listened
you mustn't have listened
they mustn't have listened	I mustn't have been listening
you mustn't have been listening
he mustn't have been listening
we mustn't have been listening
you mustn't have been listening
they mustn't have been listening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto 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? 	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 semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I listen?
mustn't you listen?
mustn't he listen?
mustn't we listen?
mustn't you listen?
mustn't they listen? 	mustn't I be listening?
mustn't you be listening?
mustn't he be listening?
mustn't we be listening?
mustn't you be listening?
mustn't they be listening? 	mustn't I have listened?
mustn't you have listened?
mustn't he have listened?
mustn't we have listened?
mustn't you have listened?
mustn't they have listened? 	mustn't I have been listening?
mustn't you have been listening?
mustn't he have been listening?
mustn't we have been listening?
mustn't you have been listening?
mustn't they have been listening?