English verb conjugation
COULD HARBOR

Regular verb: harbor - harbored - harbored

Affirmation

Simple form	V-ing form
I could harbor you could harbor he could harbor we could harbor you could harbor they could harbor	I could be harboring you could be harboring he could be harboring we could be harboring you could be harboring they could be harboring
Perfect	V-ing perfect
I could have harbored you could have harbored he could have harbored we could have harbored you could have harbored they could have harbored	I could have been harboring you could have been harboring he could have been harboring we could have been harboring you could have been harboring they could have been harboring

Negation

Simple form	V-ing form
I could not harbor you could not harbor he could not harbor we could not harbor you could not harbor they could not harbor	I could not be harboring you could not be harboring he could not be harboring we could not be harboring you could not be harboring they could not be harboring
Perfect	V-ing perfect
I could not have harbored you could not have harbored he could not have harbored we could not have harbored you could not have harbored they could not have harbored	I could not have been harboring you could not have been harboring he could not have been harboring we could not have been harboring you could not have been harboring they could not have been harboring

Interrogative form

Simple form	V-ing form
could I harbor? could you harbor? could he harbor? could we harbor? could you harbor? could they harbor?	could I be harboring? could you be harboring? could he be harboring? could we be harboring? could you be harboring? could they be harboring?
Perfect	V-ing perfect
could I have harbored? could you have harbored? could he have harbored? could we have harbored? could you have harbored? could they have harbored?	could I have been harboring? could you have been harboring? could he have been harboring? could we have been harboring? could you have been harboring? could they have been harboring?

Interro-negative form

Simple form	V-ing form
could I not harbor? could you not harbor? could he not harbor? could we not harbor? could you not harbor? could they not harbor?	could I not be harboring? could you not be harboring? could he not be harboring? could we not be harboring? could you not be harboring? could they not be harboring?
Perfect	V-ing perfect
could I not have harbored? could you not have harbored? could he not have harbored? could we not have harbored? could you not have harbored? could they not have harbored?	could I not have been harboring? could you not have been harboring? could he not have been harboring? could we not have been harboring? could you not have been harboring? could they not have been harboring?