could ferule
Verbe régulier : ferule - feruled- feruled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could ferule
you could ferule
she could ferule
we could ferule
you could ferule
they could ferule 	I could be feruling
you could be feruling
she could be feruling
we could be feruling
you could be feruling
they could be feruling	I could have feruled
you could have feruled
she could have feruled
we could have feruled
you could have feruled
they could have feruled	I could have been feruling
you could have been feruling
she could have been feruling
we could have been feruling
you could have been feruling
they could have been feruling	

Négation 	
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I couldn't ferule
you couldn't ferule
she couldn't ferule
we couldn't ferule
you couldn't ferule
they couldn't ferule 	I couldn't be feruling
you couldn't be feruling
she couldn't be feruling
we couldn't be feruling
you couldn't be feruling
they couldn't be feruling	I couldn't have feruled
you couldn't have feruled
she couldn't have feruled
we couldn't have feruled
you couldn't have feruled
they couldn't have feruled	I couldn't have been feruling
you couldn't have been feruling
she couldn't have been feruling
we couldn't have been feruling
you couldn't have been feruling
they couldn't have been feruling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I ferule?
could you ferule?
could she ferule?
could we ferule?
could you ferule?
could they ferule? 	could I be feruling?
could you be feruling?
could she be feruling?
could we be feruling?
could you be feruling?
could they be feruling? 	could I have feruled?
could you have feruled?
could she have feruled?
could we have feruled?
could you have feruled?
could they have feruled? 	could I have been feruling?
could you have been feruling?
could she have been feruling?
could we have been feruling?
could you have been feruling?
could they have been feruling? 	

Forme interro-négative 	
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couldn't I ferule?
couldn't you ferule?
couldn't she ferule?
couldn't we ferule?
couldn't you ferule?
couldn't they ferule? 	couldn't I be feruling?
couldn't you be feruling?
couldn't she be feruling?
couldn't we be feruling?
couldn't you be feruling?
couldn't they be feruling? 	couldn't I have feruled?
couldn't you have feruled?
couldn't she have feruled?
couldn't we have feruled?
couldn't you have feruled?
couldn't they have feruled? 	couldn't I have been feruling?
couldn't you have been feruling?
couldn't she have been feruling?
couldn't we have been feruling?
couldn't you have been feruling?
couldn't they have been feruling?