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 couldn't deaden you couldn't deaden he couldn't deaden we couldn't deaden you couldn't deaden they couldn't deaden	I couldn't be deadening you couldn't be deadening he couldn't be deadening we couldn't be deadening you couldn't be deadening they couldn't be deadening
Perfect	V-ing perfect
I couldn't have deadened you couldn't have deadened he couldn't have deadened we couldn't have deadened you couldn't have deadened they couldn't have deadened	I couldn't have been deadening you couldn't have been deadening he couldn't have been deadening we couldn't have been deadening you couldn't have been deadening they couldn't 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
couldn't I deaden? couldn't you deaden? couldn't he deaden? couldn't we deaden? couldn't you deaden? couldn't they deaden?	couldn't I be deadening? couldn't you be deadening? couldn't he be deadening? couldn't we be deadening? couldn't you be deadening? couldn't they be deadening?
Perfect	V-ing perfect
couldn't I have deadened? couldn't you have deadened? couldn't he have deadened? couldn't we have deadened? couldn't you have deadened? couldn't they have deadened?	couldn't I have been deadening? couldn't you have been deadening? couldn't he have been deadening? couldn't we have been deadening? couldn't you have been deadening? couldn't they have been deadening?