I can slim you can slim she can slim we can slim you can slim they can slim
V-ing form
I can be slimming you can be slimming she can be slimming we can be slimming you can be slimming they can be slimming
Perfect
I can have slimmed you can have slimmed she 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 she can have been slimming we can have been slimming you can have been slimming they can have been slimming
Negation
Simple form
I can't slim you can't slim she can't slim we can't slim you can't slim they can't slim
V-ing form
I can't be slimming you can't be slimming she can't be slimming we can't be slimming you can't be slimming they can't be slimming
Perfect
I can't have slimmed you can't have slimmed she can't have slimmed we can't have slimmed you can't have slimmed they can't have slimmed
V-ing perfect
I can't have been slimming you can't have been slimming she can't have been slimming we can't have been slimming you can't have been slimming they can't have been slimming
Interrogative form
Simple form
can I slim? can you slim? can she slim? can we slim? can you slim? can they slim?
V-ing form
can I be slimming? can you be slimming? can she be slimming? can we be slimming? can you be slimming? can they be slimming?
Perfect
can I have slimmed? can you have slimmed? can she 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 she have been slimming? can we have been slimming? can you have been slimming? can they have been slimming?
Interro-negative form
Simple form
can't I slim? can't you slim? can't she slim? can't we slim? can't you slim? can't they slim?
V-ing form
can't I be slimming? can't you be slimming? can't she be slimming? can't we be slimming? can't you be slimming? can't they be slimming?
Perfect
can't I have slimmed? can't you have slimmed? can't she have slimmed? can't we have slimmed? can't you have slimmed? can't they have slimmed?
V-ing perfect
can't I have been slimming? can't you have been slimming? can't she have been slimming? can't we have been slimming? can't you have been slimming? can't they have been slimming?