Present participle; Past participle - reacting - reacted Present - react - react - reacts - react - react - react Past - reacted - reacted - reacted - reacted - reacted - reacted Future - will react - will react - will react - will react - will react - will react Present conditional - would react - would react - would react - would react - would react - would react Present Perfect - have reacted - have reacted - has reacted - have reacted - have reacted - have reacted Past Perfect - had reacted - had reacted - had reacted - had reacted - had reacted - had reacted Future Perfect - will have reacted - will have reacted - will have reacted - will have reacted - will have reacted - will have reacted Past conditional - would have reacted - would have reacted - would have reacted - would have reacted - would have reacted - would have reacted Imperative - - - react - - - - - - - -