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 must not interfere
you must not interfere
he must not interfere
we must not interfere
you must not interfere
they must not interfere 	I must not be interfering
you must not be interfering
he must not be interfering
we must not be interfering
you must not be interfering
they must not be interfering	I must not have interfered
you must not have interfered
he must not have interfered
we must not have interfered
you must not have interfered
they must not have interfered	I must not have been interfering
you must not have been interfering
he must not have been interfering
we must not have been interfering
you must not have been interfering
they must not 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 	
must I not interfere?
must you not interfere?
must he not interfere?
must we not interfere?
must you not interfere?
must they not interfere? 	must I not be interfering?
must you not be interfering?
must he not be interfering?
must we not be interfering?
must you not be interfering?
must they not be interfering? 	must I not have interfered?
must you not have interfered?
must he not have interfered?
must we not have interfered?
must you not have interfered?
must they not have interfered? 	must I not have been interfering?
must you not have been interfering?
must he not have been interfering?
must we not have been interfering?
must you not have been interfering?
must they not have been interfering?