Present participle; Past participle - untying - untied Present - untie - untie - unties - untie - untie - untie Past - untied - untied - untied - untied - untied - untied Future - will untie - will untie - will untie - will untie - will untie - will untie Present conditional - would untie - would untie - would untie - would untie - would untie - would untie Present Perfect - have untied - have untied - has untied - have untied - have untied - have untied Past Perfect - had untied - had untied - had untied - had untied - had untied - had untied Future Perfect - will have untied - will have untied - will have untied - will have untied - will have untied - will have untied Past conditional - would have untied - would have untied - would have untied - would have untied - would have untied - would have untied Imperative - - - untie - - - - - - - -