English verb conjugation
COULD OVERLABOR

Regular verb: overlabor - overlabored - overlabored

Affirmation

Simple form	V-ing form
I could overlabor you could overlabor she could overlabor we could overlabor you could overlabor they could overlabor	I could be overlaboring you could be overlaboring she could be overlaboring we could be overlaboring you could be overlaboring they could be overlaboring
Perfect	V-ing perfect
I could have overlabored you could have overlabored she could have overlabored we could have overlabored you could have overlabored they could have overlabored	I could have been overlaboring you could have been overlaboring she could have been overlaboring we could have been overlaboring you could have been overlaboring they could have been overlaboring

Negation

Simple form	V-ing form
I could not overlabor you could not overlabor she could not overlabor we could not overlabor you could not overlabor they could not overlabor	I could not be overlaboring you could not be overlaboring she could not be overlaboring we could not be overlaboring you could not be overlaboring they could not be overlaboring
Perfect	V-ing perfect
I could not have overlabored you could not have overlabored she could not have overlabored we could not have overlabored you could not have overlabored they could not have overlabored	I could not have been overlaboring you could not have been overlaboring she could not have been overlaboring we could not have been overlaboring you could not have been overlaboring they could not have been overlaboring

Interrogative form

Simple form	V-ing form
could I overlabor? could you overlabor? could she overlabor? could we overlabor? could you overlabor? could they overlabor?	could I be overlaboring? could you be overlaboring? could she be overlaboring? could we be overlaboring? could you be overlaboring? could they be overlaboring?
Perfect	V-ing perfect
could I have overlabored? could you have overlabored? could she have overlabored? could we have overlabored? could you have overlabored? could they have overlabored?	could I have been overlaboring? could you have been overlaboring? could she have been overlaboring? could we have been overlaboring? could you have been overlaboring? could they have been overlaboring?

Interro-negative form

Simple form	V-ing form
could I not overlabor? could you not overlabor? could she not overlabor? could we not overlabor? could you not overlabor? could they not overlabor?	could I not be overlaboring? could you not be overlaboring? could she not be overlaboring? could we not be overlaboring? could you not be overlaboring? could they not be overlaboring?
Perfect	V-ing perfect
could I not have overlabored? could you not have overlabored? could she not have overlabored? could we not have overlabored? could you not have overlabored? could they not have overlabored?	could I not have been overlaboring? could you not have been overlaboring? could she not have been overlaboring? could we not have been overlaboring? could you not have been overlaboring? could they not have been overlaboring?