Present participle; Past participle - tending - tended Present - tend - tend - tends - tend - tend - tend Past - tended - tended - tended - tended - tended - tended Future - will tend - will tend - will tend - will tend - will tend - will tend Present conditional - would tend - would tend - would tend - would tend - would tend - would tend Present Perfect - have tended - have tended - has tended - have tended - have tended - have tended Past Perfect - had tended - had tended - had tended - had tended - had tended - had tended Future Perfect - will have tended - will have tended - will have tended - will have tended - will have tended - will have tended Past conditional - would have tended - would have tended - would have tended - would have tended - would have tended - would have tended Imperative - - - tend - - - - - - - -