could leaven
Verbe régulier : leaven - leavened- leavened
Traduction française : faire lever - égayer 

Affirmation 	
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I could leaven
you could leaven
she could leaven
we could leaven
you could leaven
they could leaven 	I could be leavening
you could be leavening
she could be leavening
we could be leavening
you could be leavening
they could be leavening	I could have leavened
you could have leavened
she could have leavened
we could have leavened
you could have leavened
they could have leavened	I could have been leavening
you could have been leavening
she could have been leavening
we could have been leavening
you could have been leavening
they could have been leavening	

Négation 	
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I couldn't leaven
you couldn't leaven
she couldn't leaven
we couldn't leaven
you couldn't leaven
they couldn't leaven 	I couldn't be leavening
you couldn't be leavening
she couldn't be leavening
we couldn't be leavening
you couldn't be leavening
they couldn't be leavening	I couldn't have leavened
you couldn't have leavened
she couldn't have leavened
we couldn't have leavened
you couldn't have leavened
they couldn't have leavened	I couldn't have been leavening
you couldn't have been leavening
she couldn't have been leavening
we couldn't have been leavening
you couldn't have been leavening
they couldn't have been leavening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I leaven?
could you leaven?
could she leaven?
could we leaven?
could you leaven?
could they leaven? 	could I be leavening?
could you be leavening?
could she be leavening?
could we be leavening?
could you be leavening?
could they be leavening? 	could I have leavened?
could you have leavened?
could she have leavened?
could we have leavened?
could you have leavened?
could they have leavened? 	could I have been leavening?
could you have been leavening?
could she have been leavening?
could we have been leavening?
could you have been leavening?
could they have been leavening? 	

Forme interro-négative 	
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couldn't I leaven?
couldn't you leaven?
couldn't she leaven?
couldn't we leaven?
couldn't you leaven?
couldn't they leaven? 	couldn't I be leavening?
couldn't you be leavening?
couldn't she be leavening?
couldn't we be leavening?
couldn't you be leavening?
couldn't they be leavening? 	couldn't I have leavened?
couldn't you have leavened?
couldn't she have leavened?
couldn't we have leavened?
couldn't you have leavened?
couldn't they have leavened? 	couldn't I have been leavening?
couldn't you have been leavening?
couldn't she have been leavening?
couldn't we have been leavening?
couldn't you have been leavening?
couldn't they have been leavening?