must mark
Verbo regolare: mark - marked- marked

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must mark
you must mark
he must mark
we must mark
you must mark
they must mark 	I must be marking
you must be marking
he must be marking
we must be marking
you must be marking
they must be marking	I must have marked
you must have marked
he must have marked
we must have marked
you must have marked
they must have marked	I must have been marking
you must have been marking
he must have been marking
we must have been marking
you must have been marking
they must have been marking	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't mark
you mustn't mark
he mustn't mark
we mustn't mark
you mustn't mark
they mustn't mark 	I mustn't be marking
you mustn't be marking
he mustn't be marking
we mustn't be marking
you mustn't be marking
they mustn't be marking	I mustn't have marked
you mustn't have marked
he mustn't have marked
we mustn't have marked
you mustn't have marked
they mustn't have marked	I mustn't have been marking
you mustn't have been marking
he mustn't have been marking
we mustn't have been marking
you mustn't have been marking
they mustn't have been marking	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I mark?
must you mark?
must he mark?
must we mark?
must you mark?
must they mark? 	must I be marking?
must you be marking?
must he be marking?
must we be marking?
must you be marking?
must they be marking? 	must I have marked?
must you have marked?
must he have marked?
must we have marked?
must you have marked?
must they have marked? 	must I have been marking?
must you have been marking?
must he have been marking?
must we have been marking?
must you have been marking?
must they have been marking? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I mark?
mustn't you mark?
mustn't he mark?
mustn't we mark?
mustn't you mark?
mustn't they mark? 	mustn't I be marking?
mustn't you be marking?
mustn't he be marking?
mustn't we be marking?
mustn't you be marking?
mustn't they be marking? 	mustn't I have marked?
mustn't you have marked?
mustn't he have marked?
mustn't we have marked?
mustn't you have marked?
mustn't they have marked? 	mustn't I have been marking?
mustn't you have been marking?
mustn't he have been marking?
mustn't we have been marking?
mustn't you have been marking?
mustn't they have been marking?