must drowse
Verbo regolare: drowse - drowsed- drowsed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must drowse
you must drowse
he must drowse
we must drowse
you must drowse
they must drowse 	I must be drowsing
you must be drowsing
he must be drowsing
we must be drowsing
you must be drowsing
they must be drowsing	I must have drowsed
you must have drowsed
he must have drowsed
we must have drowsed
you must have drowsed
they must have drowsed	I must have been drowsing
you must have been drowsing
he must have been drowsing
we must have been drowsing
you must have been drowsing
they must have been drowsing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't drowse
you mustn't drowse
he mustn't drowse
we mustn't drowse
you mustn't drowse
they mustn't drowse 	I mustn't be drowsing
you mustn't be drowsing
he mustn't be drowsing
we mustn't be drowsing
you mustn't be drowsing
they mustn't be drowsing	I mustn't have drowsed
you mustn't have drowsed
he mustn't have drowsed
we mustn't have drowsed
you mustn't have drowsed
they mustn't have drowsed	I mustn't have been drowsing
you mustn't have been drowsing
he mustn't have been drowsing
we mustn't have been drowsing
you mustn't have been drowsing
they mustn't have been drowsing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I drowse?
must you drowse?
must he drowse?
must we drowse?
must you drowse?
must they drowse? 	must I be drowsing?
must you be drowsing?
must he be drowsing?
must we be drowsing?
must you be drowsing?
must they be drowsing? 	must I have drowsed?
must you have drowsed?
must he have drowsed?
must we have drowsed?
must you have drowsed?
must they have drowsed? 	must I have been drowsing?
must you have been drowsing?
must he have been drowsing?
must we have been drowsing?
must you have been drowsing?
must they have been drowsing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I drowse?
mustn't you drowse?
mustn't he drowse?
mustn't we drowse?
mustn't you drowse?
mustn't they drowse? 	mustn't I be drowsing?
mustn't you be drowsing?
mustn't he be drowsing?
mustn't we be drowsing?
mustn't you be drowsing?
mustn't they be drowsing? 	mustn't I have drowsed?
mustn't you have drowsed?
mustn't he have drowsed?
mustn't we have drowsed?
mustn't you have drowsed?
mustn't they have drowsed? 	mustn't I have been drowsing?
mustn't you have been drowsing?
mustn't he have been drowsing?
mustn't we have been drowsing?
mustn't you have been drowsing?
mustn't they have been drowsing?