English verb conjugation
COULD UNBAR

Regular verb: unbar - unbarred - unbarred

Affirmation

Simple form	V-ing form
I could unbar you could unbar she could unbar we could unbar you could unbar they could unbar	I could be unbarring you could be unbarring she could be unbarring we could be unbarring you could be unbarring they could be unbarring
Perfect	V-ing perfect
I could have unbarred you could have unbarred she could have unbarred we could have unbarred you could have unbarred they could have unbarred	I could have been unbarring you could have been unbarring she could have been unbarring we could have been unbarring you could have been unbarring they could have been unbarring

Negation

Simple form	V-ing form
I could not unbar you could not unbar she could not unbar we could not unbar you could not unbar they could not unbar	I could not be unbarring you could not be unbarring she could not be unbarring we could not be unbarring you could not be unbarring they could not be unbarring
Perfect	V-ing perfect
I could not have unbarred you could not have unbarred she could not have unbarred we could not have unbarred you could not have unbarred they could not have unbarred	I could not have been unbarring you could not have been unbarring she could not have been unbarring we could not have been unbarring you could not have been unbarring they could not have been unbarring

Interrogative form

Simple form	V-ing form
could I unbar? could you unbar? could she unbar? could we unbar? could you unbar? could they unbar?	could I be unbarring? could you be unbarring? could she be unbarring? could we be unbarring? could you be unbarring? could they be unbarring?
Perfect	V-ing perfect
could I have unbarred? could you have unbarred? could she have unbarred? could we have unbarred? could you have unbarred? could they have unbarred?	could I have been unbarring? could you have been unbarring? could she have been unbarring? could we have been unbarring? could you have been unbarring? could they have been unbarring?

Interro-negative form

Simple form	V-ing form
could I not unbar? could you not unbar? could she not unbar? could we not unbar? could you not unbar? could they not unbar?	could I not be unbarring? could you not be unbarring? could she not be unbarring? could we not be unbarring? could you not be unbarring? could they not be unbarring?
Perfect	V-ing perfect
could I not have unbarred? could you not have unbarred? could she not have unbarred? could we not have unbarred? could you not have unbarred? could they not have unbarred?	could I not have been unbarring? could you not have been unbarring? could she not have been unbarring? could we not have been unbarring? could you not have been unbarring? could they not have been unbarring?