I can enable you can enable he can enable we can enable you can enable they can enable
V-ing form
I can be enabling you can be enabling he can be enabling we can be enabling you can be enabling they can be enabling
Perfect
I can have enabled you can have enabled he can have enabled we can have enabled you can have enabled they can have enabled
V-ing perfect
I can have been enabling you can have been enabling he can have been enabling we can have been enabling you can have been enabling they can have been enabling
Negation
Simple form
I cannot enable you cannot enable he cannot enable we cannot enable you cannot enable they cannot enable
V-ing form
I cannot be enabling you cannot be enabling he cannot be enabling we cannot be enabling you cannot be enabling they cannot be enabling
Perfect
I cannot have enabled you cannot have enabled he cannot have enabled we cannot have enabled you cannot have enabled they cannot have enabled
V-ing perfect
I cannot have been enabling you cannot have been enabling he cannot have been enabling we cannot have been enabling you cannot have been enabling they cannot have been enabling
Interrogative form
Simple form
can I enable? can you enable? can he enable? can we enable? can you enable? can they enable?
V-ing form
can I be enabling? can you be enabling? can he be enabling? can we be enabling? can you be enabling? can they be enabling?
Perfect
can I have enabled? can you have enabled? can he have enabled? can we have enabled? can you have enabled? can they have enabled?
V-ing perfect
can I have been enabling? can you have been enabling? can he have been enabling? can we have been enabling? can you have been enabling? can they have been enabling?
Interro-negative form
Simple form
can I not enable? can you not enable? can he not enable? can we not enable? can you not enable? can they not enable?
V-ing form
can I not be enabling? can you not be enabling? can he not be enabling? can we not be enabling? can you not be enabling? can they not be enabling?
Perfect
can I not have enabled? can you not have enabled? can he not have enabled? can we not have enabled? can you not have enabled? can they not have enabled?
V-ing perfect
can I not have been enabling? can you not have been enabling? can he not have been enabling? can we not have been enabling? can you not have been enabling? can they not have been enabling?