I can wax you can wax he can wax we can wax you can wax they can wax
V-ing form
I can be waxing you can be waxing he can be waxing we can be waxing you can be waxing they can be waxing
Perfect
I can have waxed you can have waxed he can have waxed we can have waxed you can have waxed they can have waxed
V-ing perfect
I can have been waxing you can have been waxing he can have been waxing we can have been waxing you can have been waxing they can have been waxing
Negation
Simple form
I can't wax you can't wax he can't wax we can't wax you can't wax they can't wax
V-ing form
I can't be waxing you can't be waxing he can't be waxing we can't be waxing you can't be waxing they can't be waxing
Perfect
I can't have waxed you can't have waxed he can't have waxed we can't have waxed you can't have waxed they can't have waxed
V-ing perfect
I can't have been waxing you can't have been waxing he can't have been waxing we can't have been waxing you can't have been waxing they can't have been waxing
Interrogative form
Simple form
can I wax? can you wax? can he wax? can we wax? can you wax? can they wax?
V-ing form
can I be waxing? can you be waxing? can he be waxing? can we be waxing? can you be waxing? can they be waxing?
Perfect
can I have waxed? can you have waxed? can he have waxed? can we have waxed? can you have waxed? can they have waxed?
V-ing perfect
can I have been waxing? can you have been waxing? can he have been waxing? can we have been waxing? can you have been waxing? can they have been waxing?
Interro-negative form
Simple form
can't I wax? can't you wax? can't he wax? can't we wax? can't you wax? can't they wax?
V-ing form
can't I be waxing? can't you be waxing? can't he be waxing? can't we be waxing? can't you be waxing? can't they be waxing?
Perfect
can't I have waxed? can't you have waxed? can't he have waxed? can't we have waxed? can't you have waxed? can't they have waxed?
V-ing perfect
can't I have been waxing? can't you have been waxing? can't he have been waxing? can't we have been waxing? can't you have been waxing? can't they have been waxing?