I can abandon you can abandon he can abandon we can abandon you can abandon they can abandon
V-ing form
I can be abandoning you can be abandoning he can be abandoning we can be abandoning you can be abandoning they can be abandoning
Perfect
I can have abandoned you can have abandoned he can have abandoned we can have abandoned you can have abandoned they can have abandoned
V-ing perfect
I can have been abandoning you can have been abandoning he can have been abandoning we can have been abandoning you can have been abandoning they can have been abandoning
Negation
Simple form
I cannot abandon you cannot abandon he cannot abandon we cannot abandon you cannot abandon they cannot abandon
V-ing form
I cannot be abandoning you cannot be abandoning he cannot be abandoning we cannot be abandoning you cannot be abandoning they cannot be abandoning
Perfect
I cannot have abandoned you cannot have abandoned he cannot have abandoned we cannot have abandoned you cannot have abandoned they cannot have abandoned
V-ing perfect
I cannot have been abandoning you cannot have been abandoning he cannot have been abandoning we cannot have been abandoning you cannot have been abandoning they cannot have been abandoning
Interrogative form
Simple form
can I abandon? can you abandon? can he abandon? can we abandon? can you abandon? can they abandon?
V-ing form
can I be abandoning? can you be abandoning? can he be abandoning? can we be abandoning? can you be abandoning? can they be abandoning?
Perfect
can I have abandoned? can you have abandoned? can he have abandoned? can we have abandoned? can you have abandoned? can they have abandoned?
V-ing perfect
can I have been abandoning? can you have been abandoning? can he have been abandoning? can we have been abandoning? can you have been abandoning? can they have been abandoning?
Interro-negative form
Simple form
can I not abandon? can you not abandon? can he not abandon? can we not abandon? can you not abandon? can they not abandon?
V-ing form
can I not be abandoning? can you not be abandoning? can he not be abandoning? can we not be abandoning? can you not be abandoning? can they not be abandoning?
Perfect
can I not have abandoned? can you not have abandoned? can he not have abandoned? can we not have abandoned? can you not have abandoned? can they not have abandoned?
V-ing perfect
can I not have been abandoning? can you not have been abandoning? can he not have been abandoning? can we not have been abandoning? can you not have been abandoning? can they not have been abandoning?