Present participle; Past participle - towing - towed Present - tow - tow - tows - tow - tow - tow Past - towed - towed - towed - towed - towed - towed Future - will tow - will tow - will tow - will tow - will tow - will tow Present conditional - would tow - would tow - would tow - would tow - would tow - would tow Present Perfect - have towed - have towed - has towed - have towed - have towed - have towed Past Perfect - had towed - had towed - had towed - had towed - had towed - had towed Future Perfect - will have towed - will have towed - will have towed - will have towed - will have towed - will have towed Past conditional - would have towed - would have towed - would have towed - would have towed - would have towed - would have towed Imperative - - - tow - - - - - - - -