must interfere
Verbo regolare: interfere - interfered- interfered

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must interfere
you must interfere
he must interfere
we must interfere
you must interfere
they must interfere 	I must be interfering
you must be interfering
he must be interfering
we must be interfering
you must be interfering
they must be interfering	I must have interfered
you must have interfered
he must have interfered
we must have interfered
you must have interfered
they must have interfered	I must have been interfering
you must have been interfering
he must have been interfering
we must have been interfering
you must have been interfering
they must have been interfering	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't interfere
you mustn't interfere
he mustn't interfere
we mustn't interfere
you mustn't interfere
they mustn't interfere 	I mustn't be interfering
you mustn't be interfering
he mustn't be interfering
we mustn't be interfering
you mustn't be interfering
they mustn't be interfering	I mustn't have interfered
you mustn't have interfered
he mustn't have interfered
we mustn't have interfered
you mustn't have interfered
they mustn't have interfered	I mustn't have been interfering
you mustn't have been interfering
he mustn't have been interfering
we mustn't have been interfering
you mustn't have been interfering
they mustn't have been interfering	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I interfere?
must you interfere?
must he interfere?
must we interfere?
must you interfere?
must they interfere? 	must I be interfering?
must you be interfering?
must he be interfering?
must we be interfering?
must you be interfering?
must they be interfering? 	must I have interfered?
must you have interfered?
must he have interfered?
must we have interfered?
must you have interfered?
must they have interfered? 	must I have been interfering?
must you have been interfering?
must he have been interfering?
must we have been interfering?
must you have been interfering?
must they have been interfering? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I interfere?
mustn't you interfere?
mustn't he interfere?
mustn't we interfere?
mustn't you interfere?
mustn't they interfere? 	mustn't I be interfering?
mustn't you be interfering?
mustn't he be interfering?
mustn't we be interfering?
mustn't you be interfering?
mustn't they be interfering? 	mustn't I have interfered?
mustn't you have interfered?
mustn't he have interfered?
mustn't we have interfered?
mustn't you have interfered?
mustn't they have interfered? 	mustn't I have been interfering?
mustn't you have been interfering?
mustn't he have been interfering?
mustn't we have been interfering?
mustn't you have been interfering?
mustn't they have been interfering?