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 could not loo
you could not loo
she could not loo
we could not loo
you could not loo
they could not loo 	I could not be looing
you could not be looing
she could not be looing
we could not be looing
you could not be looing
they could not be looing	I could not have looed
you could not have looed
she could not have looed
we could not have looed
you could not have looed
they could not have looed	I could not have been looing
you could not have been looing
she could not have been looing
we could not have been looing
you could not have been looing
they could not 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 	
could I not loo?
could you not loo?
could she not loo?
could we not loo?
could you not loo?
could they not loo? 	could I not be looing?
could you not be looing?
could she not be looing?
could we not be looing?
could you not be looing?
could they not be looing? 	could I not have looed?
could you not have looed?
could she not have looed?
could we not have looed?
could you not have looed?
could they not have looed? 	could I not have been looing?
could you not have been looing?
could she not have been looing?
could we not have been looing?
could you not have been looing?
could they not have been looing?