Present participle; Past participle - naturalizing - naturalized Present - naturalize - naturalize - naturalizes - naturalize - naturalize - naturalize Past - naturalized - naturalized - naturalized - naturalized - naturalized - naturalized Future - will naturalize - will naturalize - will naturalize - will naturalize - will naturalize - will naturalize Present conditional - would naturalize - would naturalize - would naturalize - would naturalize - would naturalize - would naturalize Present Perfect - have naturalized - have naturalized - has naturalized - have naturalized - have naturalized - have naturalized Past Perfect - had naturalized - had naturalized - had naturalized - had naturalized - had naturalized - had naturalized Future Perfect - will have naturalized - will have naturalized - will have naturalized - will have naturalized - will have naturalized - will have naturalized Past conditional - would have naturalized - would have naturalized - would have naturalized - would have naturalized - would have naturalized - would have naturalized Imperative - - - naturalize - - - - - - - -