I can gangrene you can gangrene he can gangrene we can gangrene you can gangrene they can gangrene
V-ing form
I can be gangrening you can be gangrening he can be gangrening we can be gangrening you can be gangrening they can be gangrening
Perfect
I can have gangrened you can have gangrened he can have gangrened we can have gangrened you can have gangrened they can have gangrened
V-ing perfect
I can have been gangrening you can have been gangrening he can have been gangrening we can have been gangrening you can have been gangrening they can have been gangrening
Negation
Simple form
I cannot gangrene you cannot gangrene he cannot gangrene we cannot gangrene you cannot gangrene they cannot gangrene
V-ing form
I cannot be gangrening you cannot be gangrening he cannot be gangrening we cannot be gangrening you cannot be gangrening they cannot be gangrening
Perfect
I cannot have gangrened you cannot have gangrened he cannot have gangrened we cannot have gangrened you cannot have gangrened they cannot have gangrened
V-ing perfect
I cannot have been gangrening you cannot have been gangrening he cannot have been gangrening we cannot have been gangrening you cannot have been gangrening they cannot have been gangrening
Interrogative form
Simple form
can I gangrene? can you gangrene? can he gangrene? can we gangrene? can you gangrene? can they gangrene?
V-ing form
can I be gangrening? can you be gangrening? can he be gangrening? can we be gangrening? can you be gangrening? can they be gangrening?
Perfect
can I have gangrened? can you have gangrened? can he have gangrened? can we have gangrened? can you have gangrened? can they have gangrened?
V-ing perfect
can I have been gangrening? can you have been gangrening? can he have been gangrening? can we have been gangrening? can you have been gangrening? can they have been gangrening?
Interro-negative form
Simple form
can I not gangrene? can you not gangrene? can he not gangrene? can we not gangrene? can you not gangrene? can they not gangrene?
V-ing form
can I not be gangrening? can you not be gangrening? can he not be gangrening? can we not be gangrening? can you not be gangrening? can they not be gangrening?
Perfect
can I not have gangrened? can you not have gangrened? can he not have gangrened? can we not have gangrened? can you not have gangrened? can they not have gangrened?
V-ing perfect
can I not have been gangrening? can you not have been gangrening? can he not have been gangrening? can we not have been gangrening? can you not have been gangrening? can they not have been gangrening?