I can powder you can powder he can powder we can powder you can powder they can powder
V-ing form
I can be powdering you can be powdering he can be powdering we can be powdering you can be powdering they can be powdering
Perfect
I can have powdered you can have powdered he can have powdered we can have powdered you can have powdered they can have powdered
V-ing perfect
I can have been powdering you can have been powdering he can have been powdering we can have been powdering you can have been powdering they can have been powdering
Negation
Simple form
I cannot powder you cannot powder he cannot powder we cannot powder you cannot powder they cannot powder
V-ing form
I cannot be powdering you cannot be powdering he cannot be powdering we cannot be powdering you cannot be powdering they cannot be powdering
Perfect
I cannot have powdered you cannot have powdered he cannot have powdered we cannot have powdered you cannot have powdered they cannot have powdered
V-ing perfect
I cannot have been powdering you cannot have been powdering he cannot have been powdering we cannot have been powdering you cannot have been powdering they cannot have been powdering
Interrogative form
Simple form
can I powder? can you powder? can he powder? can we powder? can you powder? can they powder?
V-ing form
can I be powdering? can you be powdering? can he be powdering? can we be powdering? can you be powdering? can they be powdering?
Perfect
can I have powdered? can you have powdered? can he have powdered? can we have powdered? can you have powdered? can they have powdered?
V-ing perfect
can I have been powdering? can you have been powdering? can he have been powdering? can we have been powdering? can you have been powdering? can they have been powdering?
Interro-negative form
Simple form
can I not powder? can you not powder? can he not powder? can we not powder? can you not powder? can they not powder?
V-ing form
can I not be powdering? can you not be powdering? can he not be powdering? can we not be powdering? can you not be powdering? can they not be powdering?
Perfect
can I not have powdered? can you not have powdered? can he not have powdered? can we not have powdered? can you not have powdered? can they not have powdered?
V-ing perfect
can I not have been powdering? can you not have been powdering? can he not have been powdering? can we not have been powdering? can you not have been powdering? can they not have been powdering?