English verb conjugation
CAN RESTRAIGHTEN

Regular verb: restraighten - restraightened - restraightened

Affirmation

Simple form	V-ing form
I can restraighten you can restraighten he can restraighten we can restraighten you can restraighten they can restraighten	I can be restraightening you can be restraightening he can be restraightening we can be restraightening you can be restraightening they can be restraightening
Perfect	V-ing perfect
I can have restraightened you can have restraightened he can have restraightened we can have restraightened you can have restraightened they can have restraightened	I can have been restraightening you can have been restraightening he can have been restraightening we can have been restraightening you can have been restraightening they can have been restraightening

Negation

Simple form	V-ing form
I can't restraighten you can't restraighten he can't restraighten we can't restraighten you can't restraighten they can't restraighten	I can't be restraightening you can't be restraightening he can't be restraightening we can't be restraightening you can't be restraightening they can't be restraightening
Perfect	V-ing perfect
I can't have restraightened you can't have restraightened he can't have restraightened we can't have restraightened you can't have restraightened they can't have restraightened	I can't have been restraightening you can't have been restraightening he can't have been restraightening we can't have been restraightening you can't have been restraightening they can't have been restraightening

Interrogative form

Simple form	V-ing form
can I restraighten? can you restraighten? can he restraighten? can we restraighten? can you restraighten? can they restraighten?	can I be restraightening? can you be restraightening? can he be restraightening? can we be restraightening? can you be restraightening? can they be restraightening?
Perfect	V-ing perfect
can I have restraightened? can you have restraightened? can he have restraightened? can we have restraightened? can you have restraightened? can they have restraightened?	can I have been restraightening? can you have been restraightening? can he have been restraightening? can we have been restraightening? can you have been restraightening? can they have been restraightening?

Interro-negative form

Simple form	V-ing form
can't I restraighten? can't you restraighten? can't he restraighten? can't we restraighten? can't you restraighten? can't they restraighten?	can't I be restraightening? can't you be restraightening? can't he be restraightening? can't we be restraightening? can't you be restraightening? can't they be restraightening?
Perfect	V-ing perfect
can't I have restraightened? can't you have restraightened? can't he have restraightened? can't we have restraightened? can't you have restraightened? can't they have restraightened?	can't I have been restraightening? can't you have been restraightening? can't he have been restraightening? can't we have been restraightening? can't you have been restraightening? can't they have been restraightening?