Present participle; Past participle - fermenting - fermented Present - ferment - ferment - ferments - ferment - ferment - ferment Past - fermented - fermented - fermented - fermented - fermented - fermented Future - will ferment - will ferment - will ferment - will ferment - will ferment - will ferment Present conditional - would ferment - would ferment - would ferment - would ferment - would ferment - would ferment Present Perfect - have fermented - have fermented - has fermented - have fermented - have fermented - have fermented Past Perfect - had fermented - had fermented - had fermented - had fermented - had fermented - had fermented Future Perfect - will have fermented - will have fermented - will have fermented - will have fermented - will have fermented - will have fermented Past conditional - would have fermented - would have fermented - would have fermented - would have fermented - would have fermented - would have fermented Imperative - - - ferment - - - - - - - -