could slim
Regular verb: slim - slimmed- slimmed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could slim
you could slim
she could slim
we could slim
you could slim
they could slim 	I could be slimming
you could be slimming
she could be slimming
we could be slimming
you could be slimming
they could be slimming	I could have slimmed
you could have slimmed
she could have slimmed
we could have slimmed
you could have slimmed
they could have slimmed	I could have been slimming
you could have been slimming
she could have been slimming
we could have been slimming
you could have been slimming
they could have been slimming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't slim
you couldn't slim
she couldn't slim
we couldn't slim
you couldn't slim
they couldn't slim 	I couldn't be slimming
you couldn't be slimming
she couldn't be slimming
we couldn't be slimming
you couldn't be slimming
they couldn't be slimming	I couldn't have slimmed
you couldn't have slimmed
she couldn't have slimmed
we couldn't have slimmed
you couldn't have slimmed
they couldn't have slimmed	I couldn't have been slimming
you couldn't have been slimming
she couldn't have been slimming
we couldn't have been slimming
you couldn't have been slimming
they couldn't have been slimming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I slim?
could you slim?
could she slim?
could we slim?
could you slim?
could they slim? 	could I be slimming?
could you be slimming?
could she be slimming?
could we be slimming?
could you be slimming?
could they be slimming? 	could I have slimmed?
could you have slimmed?
could she have slimmed?
could we have slimmed?
could you have slimmed?
could they have slimmed? 	could I have been slimming?
could you have been slimming?
could she have been slimming?
could we have been slimming?
could you have been slimming?
could they have been slimming? 	

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