I can slim you can slim he can slim we can slim you can slim they can slim
V-ing form
I can be slimming you can be slimming he can be slimming we can be slimming you can be slimming they can be slimming
Perfect
I can have slimmed you can have slimmed he can have slimmed we can have slimmed you can have slimmed they can have slimmed
V-ing perfect
I can have been slimming you can have been slimming he can have been slimming we can have been slimming you can have been slimming they can have been slimming
Negation
Simple form
I cannot slim you cannot slim he cannot slim we cannot slim you cannot slim they cannot slim
V-ing form
I cannot be slimming you cannot be slimming he cannot be slimming we cannot be slimming you cannot be slimming they cannot be slimming
Perfect
I cannot have slimmed you cannot have slimmed he cannot have slimmed we cannot have slimmed you cannot have slimmed they cannot have slimmed
V-ing perfect
I cannot have been slimming you cannot have been slimming he cannot have been slimming we cannot have been slimming you cannot have been slimming they cannot have been slimming
Interrogative form
Simple form
can I slim? can you slim? can he slim? can we slim? can you slim? can they slim?
V-ing form
can I be slimming? can you be slimming? can he be slimming? can we be slimming? can you be slimming? can they be slimming?
Perfect
can I have slimmed? can you have slimmed? can he have slimmed? can we have slimmed? can you have slimmed? can they have slimmed?
V-ing perfect
can I have been slimming? can you have been slimming? can he have been slimming? can we have been slimming? can you have been slimming? can they have been slimming?
Interro-negative form
Simple form
can I not slim? can you not slim? can he not slim? can we not slim? can you not slim? can they not slim?
V-ing form
can I not be slimming? can you not be slimming? can he not be slimming? can we not be slimming? can you not be slimming? can they not be slimming?
Perfect
can I not have slimmed? can you not have slimmed? can he not have slimmed? can we not have slimmed? can you not have slimmed? can they not have slimmed?
V-ing perfect
can I not have been slimming? can you not have been slimming? can he not have been slimming? can we not have been slimming? can you not have been slimming? can they not have been slimming?