I can ax you can ax he can ax we can ax you can ax they can ax
V-ing form
I can be axing you can be axing he can be axing we can be axing you can be axing they can be axing
Perfect
I can have axed you can have axed he can have axed we can have axed you can have axed they can have axed
V-ing perfect
I can have been axing you can have been axing he can have been axing we can have been axing you can have been axing they can have been axing
Negation
Simple form
I can't ax you can't ax he can't ax we can't ax you can't ax they can't ax
V-ing form
I can't be axing you can't be axing he can't be axing we can't be axing you can't be axing they can't be axing
Perfect
I can't have axed you can't have axed he can't have axed we can't have axed you can't have axed they can't have axed
V-ing perfect
I can't have been axing you can't have been axing he can't have been axing we can't have been axing you can't have been axing they can't have been axing
Interrogative form
Simple form
can I ax? can you ax? can he ax? can we ax? can you ax? can they ax?
V-ing form
can I be axing? can you be axing? can he be axing? can we be axing? can you be axing? can they be axing?
Perfect
can I have axed? can you have axed? can he have axed? can we have axed? can you have axed? can they have axed?
V-ing perfect
can I have been axing? can you have been axing? can he have been axing? can we have been axing? can you have been axing? can they have been axing?
Interro-negative form
Simple form
can't I ax? can't you ax? can't he ax? can't we ax? can't you ax? can't they ax?
V-ing form
can't I be axing? can't you be axing? can't he be axing? can't we be axing? can't you be axing? can't they be axing?
Perfect
can't I have axed? can't you have axed? can't he have axed? can't we have axed? can't you have axed? can't they have axed?
V-ing perfect
can't I have been axing? can't you have been axing? can't he have been axing? can't we have been axing? can't you have been axing? can't they have been axing?