Present participle; Past participle - recurring - recurred Present - recur - recur - recurs - recur - recur - recur Past - recurred - recurred - recurred - recurred - recurred - recurred Future - will recur - will recur - will recur - will recur - will recur - will recur Present conditional - would recur - would recur - would recur - would recur - would recur - would recur Present Perfect - have recurred - have recurred - has recurred - have recurred - have recurred - have recurred Past Perfect - had recurred - had recurred - had recurred - had recurred - had recurred - had recurred Future Perfect - will have recurred - will have recurred - will have recurred - will have recurred - will have recurred - will have recurred Past conditional - would have recurred - would have recurred - would have recurred - would have recurred - would have recurred - would have recurred Imperative - - - recur - - - - - - - -