could loo
Regular verb: loo - looed- looed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could loo
you could loo
she could loo
we could loo
you could loo
they could loo 	I could be looing
you could be looing
she could be looing
we could be looing
you could be looing
they could be looing	I could have looed
you could have looed
she could have looed
we could have looed
you could have looed
they could have looed	I could have been looing
you could have been looing
she could have been looing
we could have been looing
you could have been looing
they could have been looing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't loo
you couldn't loo
she couldn't loo
we couldn't loo
you couldn't loo
they couldn't loo 	I couldn't be looing
you couldn't be looing
she couldn't be looing
we couldn't be looing
you couldn't be looing
they couldn't be looing	I couldn't have looed
you couldn't have looed
she couldn't have looed
we couldn't have looed
you couldn't have looed
they couldn't have looed	I couldn't have been looing
you couldn't have been looing
she couldn't have been looing
we couldn't have been looing
you couldn't have been looing
they couldn't have been looing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I loo?
could you loo?
could she loo?
could we loo?
could you loo?
could they loo? 	could I be looing?
could you be looing?
could she be looing?
could we be looing?
could you be looing?
could they be looing? 	could I have looed?
could you have looed?
could she have looed?
could we have looed?
could you have looed?
could they have looed? 	could I have been looing?
could you have been looing?
could she have been looing?
could we have been looing?
could you have been looing?
could they have been looing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I loo?
couldn't you loo?
couldn't she loo?
couldn't we loo?
couldn't you loo?
couldn't they loo? 	couldn't I be looing?
couldn't you be looing?
couldn't she be looing?
couldn't we be looing?
couldn't you be looing?
couldn't they be looing? 	couldn't I have looed?
couldn't you have looed?
couldn't she have looed?
couldn't we have looed?
couldn't you have looed?
couldn't they have looed? 	couldn't I have been looing?
couldn't you have been looing?
couldn't she have been looing?
couldn't we have been looing?
couldn't you have been looing?
couldn't they have been looing?