English verb conjugation
CAN INTERFERE

Regular verb: interfere - interfered - interfered

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?