can interfere
Verbo regular: interfere - interfered- interfered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can interfere
you can interfere
he can interfere
we can interfere
you can interfere
they can interfere 	I can be interfering
you can be interfering
he can be interfering
we can be interfering
you can be interfering
they can be interfering	I can have interfered
you can have interfered
he can have interfered
we can have interfered
you can have interfered
they can have interfered	I can have been interfering
you can have been interfering
he can have been interfering
we can have been interfering
you can have been interfering
they can have been interfering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot interfere
you cannot interfere
he cannot interfere
we cannot interfere
you cannot interfere
they cannot interfere 	I cannot be interfering
you cannot be interfering
he cannot be interfering
we cannot be interfering
you cannot be interfering
they cannot be interfering	I cannot have interfered
you cannot have interfered
he cannot have interfered
we cannot have interfered
you cannot have interfered
they cannot have interfered	I cannot have been interfering
you cannot have been interfering
he cannot have been interfering
we cannot have been interfering
you cannot have been interfering
they cannot have been interfering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I interfere?
can you interfere?
can he interfere?
can we interfere?
can you interfere?
can they interfere? 	can I be interfering?
can you be interfering?
can he be interfering?
can we be interfering?
can you be interfering?
can they be interfering? 	can I have interfered?
can you have interfered?
can he have interfered?
can we have interfered?
can you have interfered?
can they have interfered? 	can I have been interfering?
can you have been interfering?
can he have been interfering?
can we have been interfering?
can you have been interfering?
can they have been interfering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not interfere?
can you not interfere?
can he not interfere?
can we not interfere?
can you not interfere?
can they not interfere? 	can I not be interfering?
can you not be interfering?
can he not be interfering?
can we not be interfering?
can you not be interfering?
can they not be interfering? 	can I not have interfered?
can you not have interfered?
can he not have interfered?
can we not have interfered?
can you not have interfered?
can they not have interfered? 	can I not have been interfering?
can you not have been interfering?
can he not have been interfering?
can we not have been interfering?
can you not have been interfering?
can they not have been interfering?