must return
Verbo regolare: return - returned- returned

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must return
you must return
he must return
we must return
you must return
they must return 	I must be returning
you must be returning
he must be returning
we must be returning
you must be returning
they must be returning	I must have returned
you must have returned
he must have returned
we must have returned
you must have returned
they must have returned	I must have been returning
you must have been returning
he must have been returning
we must have been returning
you must have been returning
they must have been returning	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't return
you mustn't return
he mustn't return
we mustn't return
you mustn't return
they mustn't return 	I mustn't be returning
you mustn't be returning
he mustn't be returning
we mustn't be returning
you mustn't be returning
they mustn't be returning	I mustn't have returned
you mustn't have returned
he mustn't have returned
we mustn't have returned
you mustn't have returned
they mustn't have returned	I mustn't have been returning
you mustn't have been returning
he mustn't have been returning
we mustn't have been returning
you mustn't have been returning
they mustn't have been returning	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I return?
must you return?
must he return?
must we return?
must you return?
must they return? 	must I be returning?
must you be returning?
must he be returning?
must we be returning?
must you be returning?
must they be returning? 	must I have returned?
must you have returned?
must he have returned?
must we have returned?
must you have returned?
must they have returned? 	must I have been returning?
must you have been returning?
must he have been returning?
must we have been returning?
must you have been returning?
must they have been returning? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I return?
mustn't you return?
mustn't he return?
mustn't we return?
mustn't you return?
mustn't they return? 	mustn't I be returning?
mustn't you be returning?
mustn't he be returning?
mustn't we be returning?
mustn't you be returning?
mustn't they be returning? 	mustn't I have returned?
mustn't you have returned?
mustn't he have returned?
mustn't we have returned?
mustn't you have returned?
mustn't they have returned? 	mustn't I have been returning?
mustn't you have been returning?
mustn't he have been returning?
mustn't we have been returning?
mustn't you have been returning?
mustn't they have been returning?