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

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
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 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not leaven
you could not leaven
she could not leaven
we could not leaven
you could not leaven
they could not leaven 	I could not be leavening
you could not be leavening
she could not be leavening
we could not be leavening
you could not be leavening
they could not be leavening	I could not have leavened
you could not have leavened
she could not have leavened
we could not have leavened
you could not have leavened
they could not have leavened	I could not have been leavening
you could not have been leavening
she could not have been leavening
we could not have been leavening
you could not have been leavening
they could not 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 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not leaven?
could you not leaven?
could she not leaven?
could we not leaven?
could you not leaven?
could they not leaven? 	could I not be leavening?
could you not be leavening?
could she not be leavening?
could we not be leavening?
could you not be leavening?
could they not be leavening? 	could I not have leavened?
could you not have leavened?
could she not have leavened?
could we not have leavened?
could you not have leavened?
could they not have leavened? 	could I not have been leavening?
could you not have been leavening?
could she not have been leavening?
could we not have been leavening?
could you not have been leavening?
could they not have been leavening?