could renew
Regular verb: renew - renewed- renewed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could renew
you could renew
he could renew
we could renew
you could renew
they could renew 	I could be renewing
you could be renewing
he could be renewing
we could be renewing
you could be renewing
they could be renewing	I could have renewed
you could have renewed
he could have renewed
we could have renewed
you could have renewed
they could have renewed	I could have been renewing
you could have been renewing
he could have been renewing
we could have been renewing
you could have been renewing
they could have been renewing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't renew
you couldn't renew
he couldn't renew
we couldn't renew
you couldn't renew
they couldn't renew 	I couldn't be renewing
you couldn't be renewing
he couldn't be renewing
we couldn't be renewing
you couldn't be renewing
they couldn't be renewing	I couldn't have renewed
you couldn't have renewed
he couldn't have renewed
we couldn't have renewed
you couldn't have renewed
they couldn't have renewed	I couldn't have been renewing
you couldn't have been renewing
he couldn't have been renewing
we couldn't have been renewing
you couldn't have been renewing
they couldn't have been renewing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I renew?
could you renew?
could he renew?
could we renew?
could you renew?
could they renew? 	could I be renewing?
could you be renewing?
could he be renewing?
could we be renewing?
could you be renewing?
could they be renewing? 	could I have renewed?
could you have renewed?
could he have renewed?
could we have renewed?
could you have renewed?
could they have renewed? 	could I have been renewing?
could you have been renewing?
could he have been renewing?
could we have been renewing?
could you have been renewing?
could they have been renewing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I renew?
couldn't you renew?
couldn't he renew?
couldn't we renew?
couldn't you renew?
couldn't they renew? 	couldn't I be renewing?
couldn't you be renewing?
couldn't he be renewing?
couldn't we be renewing?
couldn't you be renewing?
couldn't they be renewing? 	couldn't I have renewed?
couldn't you have renewed?
couldn't he have renewed?
couldn't we have renewed?
couldn't you have renewed?
couldn't they have renewed? 	couldn't I have been renewing?
couldn't you have been renewing?
couldn't he have been renewing?
couldn't we have been renewing?
couldn't you have been renewing?
couldn't they have been renewing?