could ferment
Verbe régulier : ferment - fermented- fermented
Traduction française : faire fermenter - fermenter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could ferment
you could ferment
he could ferment
we could ferment
you could ferment
they could ferment 	I could be fermenting
you could be fermenting
he could be fermenting
we could be fermenting
you could be fermenting
they could be fermenting	I could have fermented
you could have fermented
he could have fermented
we could have fermented
you could have fermented
they could have fermented	I could have been fermenting
you could have been fermenting
he could have been fermenting
we could have been fermenting
you could have been fermenting
they could have been fermenting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't ferment
you couldn't ferment
he couldn't ferment
we couldn't ferment
you couldn't ferment
they couldn't ferment 	I couldn't be fermenting
you couldn't be fermenting
he couldn't be fermenting
we couldn't be fermenting
you couldn't be fermenting
they couldn't be fermenting	I couldn't have fermented
you couldn't have fermented
he couldn't have fermented
we couldn't have fermented
you couldn't have fermented
they couldn't have fermented	I couldn't have been fermenting
you couldn't have been fermenting
he couldn't have been fermenting
we couldn't have been fermenting
you couldn't have been fermenting
they couldn't have been fermenting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I ferment?
could you ferment?
could he ferment?
could we ferment?
could you ferment?
could they ferment? 	could I be fermenting?
could you be fermenting?
could he be fermenting?
could we be fermenting?
could you be fermenting?
could they be fermenting? 	could I have fermented?
could you have fermented?
could he have fermented?
could we have fermented?
could you have fermented?
could they have fermented? 	could I have been fermenting?
could you have been fermenting?
could he have been fermenting?
could we have been fermenting?
could you have been fermenting?
could they have been fermenting? 	

Forme interro-négative 	
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couldn't I ferment?
couldn't you ferment?
couldn't he ferment?
couldn't we ferment?
couldn't you ferment?
couldn't they ferment? 	couldn't I be fermenting?
couldn't you be fermenting?
couldn't he be fermenting?
couldn't we be fermenting?
couldn't you be fermenting?
couldn't they be fermenting? 	couldn't I have fermented?
couldn't you have fermented?
couldn't he have fermented?
couldn't we have fermented?
couldn't you have fermented?
couldn't they have fermented? 	couldn't I have been fermenting?
couldn't you have been fermenting?
couldn't he have been fermenting?
couldn't we have been fermenting?
couldn't you have been fermenting?
couldn't they have been fermenting?