must be
Verbo irregolare: be - was/were- been

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must be
you must be
she must be
we must be
you must be
they must be 	I must be being
you must be being
she must be being
we must be being
you must be being
they must be being	I must have been
you must have been
she must have been
we must have been
you must have been
they must have been	I must have been being
you must have been being
she must have been being
we must have been being
you must have been being
they must have been being	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't be
you mustn't be
she mustn't be
we mustn't be
you mustn't be
they mustn't be 	I mustn't be being
you mustn't be being
she mustn't be being
we mustn't be being
you mustn't be being
they mustn't be being	I mustn't have been
you mustn't have been
she mustn't have been
we mustn't have been
you mustn't have been
they mustn't have been	I mustn't have been being
you mustn't have been being
she mustn't have been being
we mustn't have been being
you mustn't have been being
they mustn't have been being	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I be?
must you be?
must she be?
must we be?
must you be?
must they be? 	must I be being?
must you be being?
must she be being?
must we be being?
must you be being?
must they be being? 	must I have been?
must you have been?
must she have been?
must we have been?
must you have been?
must they have been? 	must I have been being?
must you have been being?
must she have been being?
must we have been being?
must you have been being?
must they have been being? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I be?
mustn't you be?
mustn't she be?
mustn't we be?
mustn't you be?
mustn't they be? 	mustn't I be being?
mustn't you be being?
mustn't she be being?
mustn't we be being?
mustn't you be being?
mustn't they be being? 	mustn't I have been?
mustn't you have been?
mustn't she have been?
mustn't we have been?
mustn't you have been?
mustn't they have been? 	mustn't I have been being?
mustn't you have been being?
mustn't she have been being?
mustn't we have been being?
mustn't you have been being?
mustn't they have been being?