Present participle; Past participle - extending - extended Present - extend - extend - extends - extend - extend - extend Past - extended - extended - extended - extended - extended - extended Future - will extend - will extend - will extend - will extend - will extend - will extend Present conditional - would extend - would extend - would extend - would extend - would extend - would extend Present Perfect - have extended - have extended - has extended - have extended - have extended - have extended Past Perfect - had extended - had extended - had extended - had extended - had extended - had extended Future Perfect - will have extended - will have extended - will have extended - will have extended - will have extended - will have extended Past conditional - would have extended - would have extended - would have extended - would have extended - would have extended - would have extended Imperative - - - extend - - - - - - - -