I could anaesthetize you could anaesthetize he could anaesthetize we could anaesthetize you could anaesthetize they could anaesthetize
V-ing form
I could be anaesthetizing you could be anaesthetizing he could be anaesthetizing we could be anaesthetizing you could be anaesthetizing they could be anaesthetizing
Perfect
I could have anaesthetized you could have anaesthetized he could have anaesthetized we could have anaesthetized you could have anaesthetized they could have anaesthetized
V-ing perfect
I could have been anaesthetizing you could have been anaesthetizing he could have been anaesthetizing we could have been anaesthetizing you could have been anaesthetizing they could have been anaesthetizing
Negation
Simple form
I could not anaesthetize you could not anaesthetize he could not anaesthetize we could not anaesthetize you could not anaesthetize they could not anaesthetize
V-ing form
I could not be anaesthetizing you could not be anaesthetizing he could not be anaesthetizing we could not be anaesthetizing you could not be anaesthetizing they could not be anaesthetizing
Perfect
I could not have anaesthetized you could not have anaesthetized he could not have anaesthetized we could not have anaesthetized you could not have anaesthetized they could not have anaesthetized
V-ing perfect
I could not have been anaesthetizing you could not have been anaesthetizing he could not have been anaesthetizing we could not have been anaesthetizing you could not have been anaesthetizing they could not have been anaesthetizing
Interrogative form
Simple form
could I anaesthetize? could you anaesthetize? could he anaesthetize? could we anaesthetize? could you anaesthetize? could they anaesthetize?
V-ing form
could I be anaesthetizing? could you be anaesthetizing? could he be anaesthetizing? could we be anaesthetizing? could you be anaesthetizing? could they be anaesthetizing?
Perfect
could I have anaesthetized? could you have anaesthetized? could he have anaesthetized? could we have anaesthetized? could you have anaesthetized? could they have anaesthetized?
V-ing perfect
could I have been anaesthetizing? could you have been anaesthetizing? could he have been anaesthetizing? could we have been anaesthetizing? could you have been anaesthetizing? could they have been anaesthetizing?
Interro-negative form
Simple form
could I not anaesthetize? could you not anaesthetize? could he not anaesthetize? could we not anaesthetize? could you not anaesthetize? could they not anaesthetize?
V-ing form
could I not be anaesthetizing? could you not be anaesthetizing? could he not be anaesthetizing? could we not be anaesthetizing? could you not be anaesthetizing? could they not be anaesthetizing?
Perfect
could I not have anaesthetized? could you not have anaesthetized? could he not have anaesthetized? could we not have anaesthetized? could you not have anaesthetized? could they not have anaesthetized?
V-ing perfect
could I not have been anaesthetizing? could you not have been anaesthetizing? could he not have been anaesthetizing? could we not have been anaesthetizing? could you not have been anaesthetizing? could they not have been anaesthetizing?