must serve
Verbo regolare: serve - served- served

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must serve
you must serve
he must serve
we must serve
you must serve
they must serve 	I must be serving
you must be serving
he must be serving
we must be serving
you must be serving
they must be serving	I must have served
you must have served
he must have served
we must have served
you must have served
they must have served	I must have been serving
you must have been serving
he must have been serving
we must have been serving
you must have been serving
they must have been serving	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't serve
you mustn't serve
he mustn't serve
we mustn't serve
you mustn't serve
they mustn't serve 	I mustn't be serving
you mustn't be serving
he mustn't be serving
we mustn't be serving
you mustn't be serving
they mustn't be serving	I mustn't have served
you mustn't have served
he mustn't have served
we mustn't have served
you mustn't have served
they mustn't have served	I mustn't have been serving
you mustn't have been serving
he mustn't have been serving
we mustn't have been serving
you mustn't have been serving
they mustn't have been serving	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I serve?
must you serve?
must he serve?
must we serve?
must you serve?
must they serve? 	must I be serving?
must you be serving?
must he be serving?
must we be serving?
must you be serving?
must they be serving? 	must I have served?
must you have served?
must he have served?
must we have served?
must you have served?
must they have served? 	must I have been serving?
must you have been serving?
must he have been serving?
must we have been serving?
must you have been serving?
must they have been serving? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I serve?
mustn't you serve?
mustn't he serve?
mustn't we serve?
mustn't you serve?
mustn't they serve? 	mustn't I be serving?
mustn't you be serving?
mustn't he be serving?
mustn't we be serving?
mustn't you be serving?
mustn't they be serving? 	mustn't I have served?
mustn't you have served?
mustn't he have served?
mustn't we have served?
mustn't you have served?
mustn't they have served? 	mustn't I have been serving?
mustn't you have been serving?
mustn't he have been serving?
mustn't we have been serving?
mustn't you have been serving?
mustn't they have been serving?