Present participle; Past participle - deadening - deadened Present - deaden - deaden - deadens - deaden - deaden - deaden Past - deadened - deadened - deadened - deadened - deadened - deadened Future - will deaden - will deaden - will deaden - will deaden - will deaden - will deaden Present conditional - would deaden - would deaden - would deaden - would deaden - would deaden - would deaden Present Perfect - have deadened - have deadened - has deadened - have deadened - have deadened - have deadened Past Perfect - had deadened - had deadened - had deadened - had deadened - had deadened - had deadened Future Perfect - will have deadened - will have deadened - will have deadened - will have deadened - will have deadened - will have deadened Past conditional - would have deadened - would have deadened - would have deadened - would have deadened - would have deadened - would have deadened Imperative - - - deaden - - - - - - - -