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