English verb conjugation
CAN CAW

Regular verb: caw - cawed - cawed

Affirmation

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

Negation

Simple form	V-ing form
I cannot caw you cannot caw he cannot caw we cannot caw you cannot caw they cannot caw	I cannot be cawing you cannot be cawing he cannot be cawing we cannot be cawing you cannot be cawing they cannot be cawing
Perfect	V-ing perfect
I cannot have cawed you cannot have cawed he cannot have cawed we cannot have cawed you cannot have cawed they cannot have cawed	I cannot have been cawing you cannot have been cawing he cannot have been cawing we cannot have been cawing you cannot have been cawing they cannot have been cawing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can I not caw? can you not caw? can he not caw? can we not caw? can you not caw? can they not caw?	can I not be cawing? can you not be cawing? can he not be cawing? can we not be cawing? can you not be cawing? can they not be cawing?
Perfect	V-ing perfect
can I not have cawed? can you not have cawed? can he not have cawed? can we not have cawed? can you not have cawed? can they not have cawed?	can I not have been cawing? can you not have been cawing? can he not have been cawing? can we not have been cawing? can you not have been cawing? can they not have been cawing?