I could slenderize you could slenderize he could slenderize we could slenderize you could slenderize they could slenderize
V-ing form
I could be slenderizing you could be slenderizing he could be slenderizing we could be slenderizing you could be slenderizing they could be slenderizing
Perfect
I could have slenderized you could have slenderized he could have slenderized we could have slenderized you could have slenderized they could have slenderized
V-ing perfect
I could have been slenderizing you could have been slenderizing he could have been slenderizing we could have been slenderizing you could have been slenderizing they could have been slenderizing
Negation
Simple form
I could not slenderize you could not slenderize he could not slenderize we could not slenderize you could not slenderize they could not slenderize
V-ing form
I could not be slenderizing you could not be slenderizing he could not be slenderizing we could not be slenderizing you could not be slenderizing they could not be slenderizing
Perfect
I could not have slenderized you could not have slenderized he could not have slenderized we could not have slenderized you could not have slenderized they could not have slenderized
V-ing perfect
I could not have been slenderizing you could not have been slenderizing he could not have been slenderizing we could not have been slenderizing you could not have been slenderizing they could not have been slenderizing
Interrogative form
Simple form
could I slenderize? could you slenderize? could he slenderize? could we slenderize? could you slenderize? could they slenderize?
V-ing form
could I be slenderizing? could you be slenderizing? could he be slenderizing? could we be slenderizing? could you be slenderizing? could they be slenderizing?
Perfect
could I have slenderized? could you have slenderized? could he have slenderized? could we have slenderized? could you have slenderized? could they have slenderized?
V-ing perfect
could I have been slenderizing? could you have been slenderizing? could he have been slenderizing? could we have been slenderizing? could you have been slenderizing? could they have been slenderizing?
Interro-negative form
Simple form
could I not slenderize? could you not slenderize? could he not slenderize? could we not slenderize? could you not slenderize? could they not slenderize?
V-ing form
could I not be slenderizing? could you not be slenderizing? could he not be slenderizing? could we not be slenderizing? could you not be slenderizing? could they not be slenderizing?
Perfect
could I not have slenderized? could you not have slenderized? could he not have slenderized? could we not have slenderized? could you not have slenderized? could they not have slenderized?
V-ing perfect
could I not have been slenderizing? could you not have been slenderizing? could he not have been slenderizing? could we not have been slenderizing? could you not have been slenderizing? could they not have been slenderizing?