I can wax you can wax she can wax we can wax you can wax they can wax
V-ing form
I can be waxing you can be waxing she can be waxing we can be waxing you can be waxing they can be waxing
Perfect
I can have waxed you can have waxed she 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 she 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 she 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 she 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 she 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 she 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 she wax? can we wax? can you wax? can they wax?
V-ing form
can I be waxing? can you be waxing? can she be waxing? can we be waxing? can you be waxing? can they be waxing?
Perfect
can I have waxed? can you have waxed? can she 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 she 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 she 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 she 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 she 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 she have been waxing? can't we have been waxing? can't you have been waxing? can't they have been waxing?