Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could apologize apologize you could apologize apologize she could apologize apologize we could apologize apologize you could apologize apologize they could apologize apologize
V-ing form
I could be apologize apologizing you could be apologize apologizing she could be apologize apologizing we could be apologize apologizing you could be apologize apologizing they could be apologize apologizing
Perfect
I could have apologize apologized you could have apologize apologized she could have apologize apologized we could have apologize apologized you could have apologize apologized they could have apologize apologized
V-ing perfect
I could have been apologize apologizing you could have been apologize apologizing she could have been apologize apologizing we could have been apologize apologizing you could have been apologize apologizing they could have been apologize apologizing
Negation
Simple form
I could not apologize apologize you could not apologize apologize she could not apologize apologize we could not apologize apologize you could not apologize apologize they could not apologize apologize
V-ing form
I could not be apologize apologizing you could not be apologize apologizing she could not be apologize apologizing we could not be apologize apologizing you could not be apologize apologizing they could not be apologize apologizing
Perfect
I could not have apologize apologized you could not have apologize apologized she could not have apologize apologized we could not have apologize apologized you could not have apologize apologized they could not have apologize apologized
V-ing perfect
I could not have been apologize apologizing you could not have been apologize apologizing she could not have been apologize apologizing we could not have been apologize apologizing you could not have been apologize apologizing they could not have been apologize apologizing
Interrogative form
Simple form
could I apologize apologize? could you apologize apologize? could she apologize apologize? could we apologize apologize? could you apologize apologize? could they apologize apologize?
V-ing form
could I be apologize apologizing? could you be apologize apologizing? could she be apologize apologizing? could we be apologize apologizing? could you be apologize apologizing? could they be apologize apologizing?
Perfect
could I have apologize apologized? could you have apologize apologized? could she have apologize apologized? could we have apologize apologized? could you have apologize apologized? could they have apologize apologized?
V-ing perfect
could I have been apologize apologizing? could you have been apologize apologizing? could she have been apologize apologizing? could we have been apologize apologizing? could you have been apologize apologizing? could they have been apologize apologizing?
Interro-negative form
Simple form
could I not apologize apologize? could you not apologize apologize? could she not apologize apologize? could we not apologize apologize? could you not apologize apologize? could they not apologize apologize?
V-ing form
could I not be apologize apologizing? could you not be apologize apologizing? could she not be apologize apologizing? could we not be apologize apologizing? could you not be apologize apologizing? could they not be apologize apologizing?
Perfect
could I not have apologize apologized? could you not have apologize apologized? could she not have apologize apologized? could we not have apologize apologized? could you not have apologize apologized? could they not have apologize apologized?
V-ing perfect
could I not have been apologize apologizing? could you not have been apologize apologizing? could she not have been apologize apologizing? could we not have been apologize apologizing? could you not have been apologize apologizing? could they not have been apologize apologizing?