must fast
Verbo regolare: fast - fasted- fasted

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must fast
you must fast
she must fast
we must fast
you must fast
they must fast 	I must be fasting
you must be fasting
she must be fasting
we must be fasting
you must be fasting
they must be fasting	I must have fasted
you must have fasted
she must have fasted
we must have fasted
you must have fasted
they must have fasted	I must have been fasting
you must have been fasting
she must have been fasting
we must have been fasting
you must have been fasting
they must have been fasting	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't fast
you mustn't fast
she mustn't fast
we mustn't fast
you mustn't fast
they mustn't fast 	I mustn't be fasting
you mustn't be fasting
she mustn't be fasting
we mustn't be fasting
you mustn't be fasting
they mustn't be fasting	I mustn't have fasted
you mustn't have fasted
she mustn't have fasted
we mustn't have fasted
you mustn't have fasted
they mustn't have fasted	I mustn't have been fasting
you mustn't have been fasting
she mustn't have been fasting
we mustn't have been fasting
you mustn't have been fasting
they mustn't have been fasting	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I fast?
must you fast?
must she fast?
must we fast?
must you fast?
must they fast? 	must I be fasting?
must you be fasting?
must she be fasting?
must we be fasting?
must you be fasting?
must they be fasting? 	must I have fasted?
must you have fasted?
must she have fasted?
must we have fasted?
must you have fasted?
must they have fasted? 	must I have been fasting?
must you have been fasting?
must she have been fasting?
must we have been fasting?
must you have been fasting?
must they have been fasting? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I fast?
mustn't you fast?
mustn't she fast?
mustn't we fast?
mustn't you fast?
mustn't they fast? 	mustn't I be fasting?
mustn't you be fasting?
mustn't she be fasting?
mustn't we be fasting?
mustn't you be fasting?
mustn't they be fasting? 	mustn't I have fasted?
mustn't you have fasted?
mustn't she have fasted?
mustn't we have fasted?
mustn't you have fasted?
mustn't they have fasted? 	mustn't I have been fasting?
mustn't you have been fasting?
mustn't she have been fasting?
mustn't we have been fasting?
mustn't you have been fasting?
mustn't they have been fasting?