must stud
Verbo regolare: stud - studded- studded

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must stud
you must stud
he must stud
we must stud
you must stud
they must stud 	I must be studding
you must be studding
he must be studding
we must be studding
you must be studding
they must be studding	I must have studded
you must have studded
he must have studded
we must have studded
you must have studded
they must have studded	I must have been studding
you must have been studding
he must have been studding
we must have been studding
you must have been studding
they must have been studding	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must not stud
you must not stud
he must not stud
we must not stud
you must not stud
they must not stud 	I must not be studding
you must not be studding
he must not be studding
we must not be studding
you must not be studding
they must not be studding	I must not have studded
you must not have studded
he must not have studded
we must not have studded
you must not have studded
they must not have studded	I must not have been studding
you must not have been studding
he must not have been studding
we must not have been studding
you must not have been studding
they must not have been studding	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I stud?
must you stud?
must he stud?
must we stud?
must you stud?
must they stud? 	must I be studding?
must you be studding?
must he be studding?
must we be studding?
must you be studding?
must they be studding? 	must I have studded?
must you have studded?
must he have studded?
must we have studded?
must you have studded?
must they have studded? 	must I have been studding?
must you have been studding?
must he have been studding?
must we have been studding?
must you have been studding?
must they have been studding? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I not stud?
must you not stud?
must he not stud?
must we not stud?
must you not stud?
must they not stud? 	must I not be studding?
must you not be studding?
must he not be studding?
must we not be studding?
must you not be studding?
must they not be studding? 	must I not have studded?
must you not have studded?
must he not have studded?
must we not have studded?
must you not have studded?
must they not have studded? 	must I not have been studding?
must you not have been studding?
must he not have been studding?
must we not have been studding?
must you not have been studding?
must they not have been studding?