I could ostracize you could ostracize he could ostracize we could ostracize you could ostracize they could ostracize
V-ing form
I could be ostracizing you could be ostracizing he could be ostracizing we could be ostracizing you could be ostracizing they could be ostracizing
Perfect
I could have ostracized you could have ostracized he could have ostracized we could have ostracized you could have ostracized they could have ostracized
V-ing perfect
I could have been ostracizing you could have been ostracizing he could have been ostracizing we could have been ostracizing you could have been ostracizing they could have been ostracizing
Negation
Simple form
I couldn't ostracize you couldn't ostracize he couldn't ostracize we couldn't ostracize you couldn't ostracize they couldn't ostracize
V-ing form
I couldn't be ostracizing you couldn't be ostracizing he couldn't be ostracizing we couldn't be ostracizing you couldn't be ostracizing they couldn't be ostracizing
Perfect
I couldn't have ostracized you couldn't have ostracized he couldn't have ostracized we couldn't have ostracized you couldn't have ostracized they couldn't have ostracized
V-ing perfect
I couldn't have been ostracizing you couldn't have been ostracizing he couldn't have been ostracizing we couldn't have been ostracizing you couldn't have been ostracizing they couldn't have been ostracizing
Interrogative form
Simple form
could I ostracize? could you ostracize? could he ostracize? could we ostracize? could you ostracize? could they ostracize?
V-ing form
could I be ostracizing? could you be ostracizing? could he be ostracizing? could we be ostracizing? could you be ostracizing? could they be ostracizing?
Perfect
could I have ostracized? could you have ostracized? could he have ostracized? could we have ostracized? could you have ostracized? could they have ostracized?
V-ing perfect
could I have been ostracizing? could you have been ostracizing? could he have been ostracizing? could we have been ostracizing? could you have been ostracizing? could they have been ostracizing?
Interro-negative form
Simple form
couldn't I ostracize? couldn't you ostracize? couldn't he ostracize? couldn't we ostracize? couldn't you ostracize? couldn't they ostracize?
V-ing form
couldn't I be ostracizing? couldn't you be ostracizing? couldn't he be ostracizing? couldn't we be ostracizing? couldn't you be ostracizing? couldn't they be ostracizing?
Perfect
couldn't I have ostracized? couldn't you have ostracized? couldn't he have ostracized? couldn't we have ostracized? couldn't you have ostracized? couldn't they have ostracized?
V-ing perfect
couldn't I have been ostracizing? couldn't you have been ostracizing? couldn't he have been ostracizing? couldn't we have been ostracizing? couldn't you have been ostracizing? couldn't they have been ostracizing?