English verb conjugation
CAN YAW

Regular verb: yaw - yawed - yawed

Affirmation

Simple form	V-ing form
I can yaw you can yaw he can yaw we can yaw you can yaw they can yaw	I can be yawing you can be yawing he can be yawing we can be yawing you can be yawing they can be yawing
Perfect	V-ing perfect
I can have yawed you can have yawed he can have yawed we can have yawed you can have yawed they can have yawed	I can have been yawing you can have been yawing he can have been yawing we can have been yawing you can have been yawing they can have been yawing

Negation

Simple form	V-ing form
I cannot yaw you cannot yaw he cannot yaw we cannot yaw you cannot yaw they cannot yaw	I cannot be yawing you cannot be yawing he cannot be yawing we cannot be yawing you cannot be yawing they cannot be yawing
Perfect	V-ing perfect
I cannot have yawed you cannot have yawed he cannot have yawed we cannot have yawed you cannot have yawed they cannot have yawed	I cannot have been yawing you cannot have been yawing he cannot have been yawing we cannot have been yawing you cannot have been yawing they cannot have been yawing

Interrogative form

Simple form	V-ing form
can I yaw? can you yaw? can he yaw? can we yaw? can you yaw? can they yaw?	can I be yawing? can you be yawing? can he be yawing? can we be yawing? can you be yawing? can they be yawing?
Perfect	V-ing perfect
can I have yawed? can you have yawed? can he have yawed? can we have yawed? can you have yawed? can they have yawed?	can I have been yawing? can you have been yawing? can he have been yawing? can we have been yawing? can you have been yawing? can they have been yawing?

Interro-negative form

Simple form	V-ing form
can I not yaw? can you not yaw? can he not yaw? can we not yaw? can you not yaw? can they not yaw?	can I not be yawing? can you not be yawing? can he not be yawing? can we not be yawing? can you not be yawing? can they not be yawing?
Perfect	V-ing perfect
can I not have yawed? can you not have yawed? can he not have yawed? can we not have yawed? can you not have yawed? can they not have yawed?	can I not have been yawing? can you not have been yawing? can he not have been yawing? can we not have been yawing? can you not have been yawing? can they not have been yawing?