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 can't interfere you can't interfere he can't interfere we can't interfere you can't interfere they can't interfere	I can't be interfering you can't be interfering he can't be interfering we can't be interfering you can't be interfering they can't be interfering
Perfect	V-ing perfect
I can't have interfered you can't have interfered he can't have interfered we can't have interfered you can't have interfered they can't have interfered	I can't have been interfering you can't have been interfering he can't have been interfering we can't have been interfering you can't have been interfering they can't 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't I interfere? can't you interfere? can't he interfere? can't we interfere? can't you interfere? can't they interfere?	can't I be interfering? can't you be interfering? can't he be interfering? can't we be interfering? can't you be interfering? can't they be interfering?
Perfect	V-ing perfect
can't I have interfered? can't you have interfered? can't he have interfered? can't we have interfered? can't you have interfered? can't they have interfered?	can't I have been interfering? can't you have been interfering? can't he have been interfering? can't we have been interfering? can't you have been interfering? can't they have been interfering?