English verb conjugation
COULD DEADEN

Regular verb: deaden - deadened - deadened

Affirmation

Simple form	V-ing form
I could deaden you could deaden he could deaden we could deaden you could deaden they could deaden	I could be deadening you could be deadening he could be deadening we could be deadening you could be deadening they could be deadening
Perfect	V-ing perfect
I could have deadened you could have deadened he could have deadened we could have deadened you could have deadened they could have deadened	I could have been deadening you could have been deadening he could have been deadening we could have been deadening you could have been deadening they could have been deadening

Negation

Simple form	V-ing form
I could not deaden you could not deaden he could not deaden we could not deaden you could not deaden they could not deaden	I could not be deadening you could not be deadening he could not be deadening we could not be deadening you could not be deadening they could not be deadening
Perfect	V-ing perfect
I could not have deadened you could not have deadened he could not have deadened we could not have deadened you could not have deadened they could not have deadened	I could not have been deadening you could not have been deadening he could not have been deadening we could not have been deadening you could not have been deadening they could not have been deadening

Interrogative form

Simple form	V-ing form
could I deaden? could you deaden? could he deaden? could we deaden? could you deaden? could they deaden?	could I be deadening? could you be deadening? could he be deadening? could we be deadening? could you be deadening? could they be deadening?
Perfect	V-ing perfect
could I have deadened? could you have deadened? could he have deadened? could we have deadened? could you have deadened? could they have deadened?	could I have been deadening? could you have been deadening? could he have been deadening? could we have been deadening? could you have been deadening? could they have been deadening?

Interro-negative form

Simple form	V-ing form
could I not deaden? could you not deaden? could he not deaden? could we not deaden? could you not deaden? could they not deaden?	could I not be deadening? could you not be deadening? could he not be deadening? could we not be deadening? could you not be deadening? could they not be deadening?
Perfect	V-ing perfect
could I not have deadened? could you not have deadened? could he not have deadened? could we not have deadened? could you not have deadened? could they not have deadened?	could I not have been deadening? could you not have been deadening? could he not have been deadening? could we not have been deadening? could you not have been deadening? could they not have been deadening?