could caw
Regular verb: caw - cawed- cawed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could caw
you could caw
he could caw
we could caw
you could caw
they could caw 	I could be cawing
you could be cawing
he could be cawing
we could be cawing
you could be cawing
they could be cawing	I could have cawed
you could have cawed
he could have cawed
we could have cawed
you could have cawed
they could have cawed	I could have been cawing
you could have been cawing
he could have been cawing
we could have been cawing
you could have been cawing
they could have been cawing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't caw
you couldn't caw
he couldn't caw
we couldn't caw
you couldn't caw
they couldn't caw 	I couldn't be cawing
you couldn't be cawing
he couldn't be cawing
we couldn't be cawing
you couldn't be cawing
they couldn't be cawing	I couldn't have cawed
you couldn't have cawed
he couldn't have cawed
we couldn't have cawed
you couldn't have cawed
they couldn't have cawed	I couldn't have been cawing
you couldn't have been cawing
he couldn't have been cawing
we couldn't have been cawing
you couldn't have been cawing
they couldn't have been cawing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I caw?
could you caw?
could he caw?
could we caw?
could you caw?
could they caw? 	could I be cawing?
could you be cawing?
could he be cawing?
could we be cawing?
could you be cawing?
could they be cawing? 	could I have cawed?
could you have cawed?
could he have cawed?
could we have cawed?
could you have cawed?
could they have cawed? 	could I have been cawing?
could you have been cawing?
could he have been cawing?
could we have been cawing?
could you have been cawing?
could they have been cawing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I caw?
couldn't you caw?
couldn't he caw?
couldn't we caw?
couldn't you caw?
couldn't they caw? 	couldn't I be cawing?
couldn't you be cawing?
couldn't he be cawing?
couldn't we be cawing?
couldn't you be cawing?
couldn't they be cawing? 	couldn't I have cawed?
couldn't you have cawed?
couldn't he have cawed?
couldn't we have cawed?
couldn't you have cawed?
couldn't they have cawed? 	couldn't I have been cawing?
couldn't you have been cawing?
couldn't he have been cawing?
couldn't we have been cawing?
couldn't you have been cawing?
couldn't they have been cawing?