must board
Verbo regolare: board - boarded- boarded

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must board
you must board
he must board
we must board
you must board
they must board 	I must be boarding
you must be boarding
he must be boarding
we must be boarding
you must be boarding
they must be boarding	I must have boarded
you must have boarded
he must have boarded
we must have boarded
you must have boarded
they must have boarded	I must have been boarding
you must have been boarding
he must have been boarding
we must have been boarding
you must have been boarding
they must have been boarding	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't board
you mustn't board
he mustn't board
we mustn't board
you mustn't board
they mustn't board 	I mustn't be boarding
you mustn't be boarding
he mustn't be boarding
we mustn't be boarding
you mustn't be boarding
they mustn't be boarding	I mustn't have boarded
you mustn't have boarded
he mustn't have boarded
we mustn't have boarded
you mustn't have boarded
they mustn't have boarded	I mustn't have been boarding
you mustn't have been boarding
he mustn't have been boarding
we mustn't have been boarding
you mustn't have been boarding
they mustn't have been boarding	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I board?
must you board?
must he board?
must we board?
must you board?
must they board? 	must I be boarding?
must you be boarding?
must he be boarding?
must we be boarding?
must you be boarding?
must they be boarding? 	must I have boarded?
must you have boarded?
must he have boarded?
must we have boarded?
must you have boarded?
must they have boarded? 	must I have been boarding?
must you have been boarding?
must he have been boarding?
must we have been boarding?
must you have been boarding?
must they have been boarding? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I board?
mustn't you board?
mustn't he board?
mustn't we board?
mustn't you board?
mustn't they board? 	mustn't I be boarding?
mustn't you be boarding?
mustn't he be boarding?
mustn't we be boarding?
mustn't you be boarding?
mustn't they be boarding? 	mustn't I have boarded?
mustn't you have boarded?
mustn't he have boarded?
mustn't we have boarded?
mustn't you have boarded?
mustn't they have boarded? 	mustn't I have been boarding?
mustn't you have been boarding?
mustn't he have been boarding?
mustn't we have been boarding?
mustn't you have been boarding?
mustn't they have been boarding?