I can interfere you can interfere she can interfere we can interfere you can interfere they can interfere
V-ing form
I can be interfering you can be interfering she can be interfering we can be interfering you can be interfering they can be interfering
Perfect
I can have interfered you can have interfered she can have interfered we can have interfered you can have interfered they can have interfered
V-ing perfect
I can have been interfering you can have been interfering she can have been interfering we can have been interfering you can have been interfering they can have been interfering
Negation
Simple form
I cannot interfere you cannot interfere she cannot interfere we cannot interfere you cannot interfere they cannot interfere
V-ing form
I cannot be interfering you cannot be interfering she cannot be interfering we cannot be interfering you cannot be interfering they cannot be interfering
Perfect
I cannot have interfered you cannot have interfered she cannot have interfered we cannot have interfered you cannot have interfered they cannot have interfered
V-ing perfect
I cannot have been interfering you cannot have been interfering she cannot have been interfering we cannot have been interfering you cannot have been interfering they cannot have been interfering
Interrogative form
Simple form
can I interfere? can you interfere? can she interfere? can we interfere? can you interfere? can they interfere?
V-ing form
can I be interfering? can you be interfering? can she be interfering? can we be interfering? can you be interfering? can they be interfering?
Perfect
can I have interfered? can you have interfered? can she have interfered? can we have interfered? can you have interfered? can they have interfered?
V-ing perfect
can I have been interfering? can you have been interfering? can she have been interfering? can we have been interfering? can you have been interfering? can they have been interfering?
Interro-negative form
Simple form
can I not interfere? can you not interfere? can she not interfere? can we not interfere? can you not interfere? can they not interfere?
V-ing form
can I not be interfering? can you not be interfering? can she not be interfering? can we not be interfering? can you not be interfering? can they not be interfering?
Perfect
can I not have interfered? can you not have interfered? can she not have interfered? can we not have interfered? can you not have interfered? can they not have interfered?
V-ing perfect
can I not have been interfering? can you not have been interfering? can she not have been interfering? can we not have been interfering? can you not have been interfering? can they not have been interfering?