Present participle; Past participle - darking - darked Present - dark - dark - darks - dark - dark - dark Past - darked - darked - darked - darked - darked - darked Future - will dark - will dark - will dark - will dark - will dark - will dark Present conditional - would dark - would dark - would dark - would dark - would dark - would dark Present Perfect - have darked - have darked - has darked - have darked - have darked - have darked Past Perfect - had darked - had darked - had darked - had darked - had darked - had darked Future Perfect - will have darked - will have darked - will have darked - will have darked - will have darked - will have darked Past conditional - would have darked - would have darked - would have darked - would have darked - would have darked - would have darked Imperative - - - dark - - - - - - - -