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 cannot wax you cannot wax she cannot wax we cannot wax you cannot wax they cannot wax
V-ing form
I cannot be waxing you cannot be waxing she cannot be waxing we cannot be waxing you cannot be waxing they cannot be waxing
Perfect
I cannot have waxed you cannot have waxed she cannot have waxed we cannot have waxed you cannot have waxed they cannot have waxed
V-ing perfect
I cannot have been waxing you cannot have been waxing she cannot have been waxing we cannot have been waxing you cannot have been waxing they cannot 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 I not wax? can you not wax? can she not wax? can we not wax? can you not wax? can they not wax?
V-ing form
can I not be waxing? can you not be waxing? can she not be waxing? can we not be waxing? can you not be waxing? can they not be waxing?
Perfect
can I not have waxed? can you not have waxed? can she not have waxed? can we not have waxed? can you not have waxed? can they not have waxed?
V-ing perfect
can I not have been waxing? can you not have been waxing? can she not have been waxing? can we not have been waxing? can you not have been waxing? can they not have been waxing?