Present participle; Past participle - economizing - economized Present - economize - economize - economizes - economize - economize - economize Past - economized - economized - economized - economized - economized - economized Future - will economize - will economize - will economize - will economize - will economize - will economize Present conditional - would economize - would economize - would economize - would economize - would economize - would economize Present Perfect - have economized - have economized - has economized - have economized - have economized - have economized Past Perfect - had economized - had economized - had economized - had economized - had economized - had economized Future Perfect - will have economized - will have economized - will have economized - will have economized - will have economized - will have economized Past conditional - would have economized - would have economized - would have economized - would have economized - would have economized - would have economized Imperative - - - economize - - - - - - - -