Present participle; Past participle - subjoining - subjoined Present - subjoin - subjoin - subjoins - subjoin - subjoin - subjoin Past - subjoined - subjoined - subjoined - subjoined - subjoined - subjoined Future - will subjoin - will subjoin - will subjoin - will subjoin - will subjoin - will subjoin Present conditional - would subjoin - would subjoin - would subjoin - would subjoin - would subjoin - would subjoin Present Perfect - have subjoined - have subjoined - has subjoined - have subjoined - have subjoined - have subjoined Past Perfect - had subjoined - had subjoined - had subjoined - had subjoined - had subjoined - had subjoined Future Perfect - will have subjoined - will have subjoined - will have subjoined - will have subjoined - will have subjoined - will have subjoined Past conditional - would have subjoined - would have subjoined - would have subjoined - would have subjoined - would have subjoined - would have subjoined Imperative - - - subjoin - - - - - - - -