Present participle; Past participle - fertilizing - fertilized Present - fertilize - fertilize - fertilizes - fertilize - fertilize - fertilize Past - fertilized - fertilized - fertilized - fertilized - fertilized - fertilized Future - will fertilize - will fertilize - will fertilize - will fertilize - will fertilize - will fertilize Present conditional - would fertilize - would fertilize - would fertilize - would fertilize - would fertilize - would fertilize Present Perfect - have fertilized - have fertilized - has fertilized - have fertilized - have fertilized - have fertilized Past Perfect - had fertilized - had fertilized - had fertilized - had fertilized - had fertilized - had fertilized Future Perfect - will have fertilized - will have fertilized - will have fertilized - will have fertilized - will have fertilized - will have fertilized Past conditional - would have fertilized - would have fertilized - would have fertilized - would have fertilized - would have fertilized - would have fertilized Imperative - - - fertilize - - - - - - - -