may interfere
Regular verb: interfere - interfered- interfered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may interfere
you may interfere
he may interfere
we may interfere
you may interfere
they may interfere 	I may be interfering
you may be interfering
he may be interfering
we may be interfering
you may be interfering
they may be interfering	I may have interfered
you may have interfered
he may have interfered
we may have interfered
you may have interfered
they may have interfered	I may have been interfering
you may have been interfering
he may have been interfering
we may have been interfering
you may have been interfering
they may have been interfering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't interfere
you mayn't interfere
he mayn't interfere
we mayn't interfere
you mayn't interfere
they mayn't interfere 	I mayn't be interfering
you mayn't be interfering
he mayn't be interfering
we mayn't be interfering
you mayn't be interfering
they mayn't be interfering	I mayn't have interfered
you mayn't have interfered
he mayn't have interfered
we mayn't have interfered
you mayn't have interfered
they mayn't have interfered	I mayn't have been interfering
you mayn't have been interfering
he mayn't have been interfering
we mayn't have been interfering
you mayn't have been interfering
they mayn't have been interfering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I interfere?
may you interfere?
may he interfere?
may we interfere?
may you interfere?
may they interfere? 	may I be interfering?
may you be interfering?
may he be interfering?
may we be interfering?
may you be interfering?
may they be interfering? 	may I have interfered?
may you have interfered?
may he have interfered?
may we have interfered?
may you have interfered?
may they have interfered? 	may I have been interfering?
may you have been interfering?
may he have been interfering?
may we have been interfering?
may you have been interfering?
may they have been interfering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I interfere?
mayn't you interfere?
mayn't he interfere?
mayn't we interfere?
mayn't you interfere?
mayn't they interfere? 	mayn't I be interfering?
mayn't you be interfering?
mayn't he be interfering?
mayn't we be interfering?
mayn't you be interfering?
mayn't they be interfering? 	mayn't I have interfered?
mayn't you have interfered?
mayn't he have interfered?
mayn't we have interfered?
mayn't you have interfered?
mayn't they have interfered? 	mayn't I have been interfering?
mayn't you have been interfering?
mayn't he have been interfering?
mayn't we have been interfering?
mayn't you have been interfering?
mayn't they have been interfering?