Present participle; Past participle - endangering - endangered Present - endanger - endanger - endangers - endanger - endanger - endanger Past - endangered - endangered - endangered - endangered - endangered - endangered Future - will endanger - will endanger - will endanger - will endanger - will endanger - will endanger Present conditional - would endanger - would endanger - would endanger - would endanger - would endanger - would endanger Present Perfect - have endangered - have endangered - has endangered - have endangered - have endangered - have endangered Past Perfect - had endangered - had endangered - had endangered - had endangered - had endangered - had endangered Future Perfect - will have endangered - will have endangered - will have endangered - will have endangered - will have endangered - will have endangered Past conditional - would have endangered - would have endangered - would have endangered - would have endangered - would have endangered - would have endangered Imperative - - - endanger - - - - - - - -