could birdie
Verbe régulier : birdie - birdied- birdied

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could birdie
you could birdie
he could birdie
we could birdie
you could birdie
they could birdie 	I could be birdying
you could be birdying
he could be birdying
we could be birdying
you could be birdying
they could be birdying	I could have birdied
you could have birdied
he could have birdied
we could have birdied
you could have birdied
they could have birdied	I could have been birdying
you could have been birdying
he could have been birdying
we could have been birdying
you could have been birdying
they could have been birdying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't birdie
you couldn't birdie
he couldn't birdie
we couldn't birdie
you couldn't birdie
they couldn't birdie 	I couldn't be birdying
you couldn't be birdying
he couldn't be birdying
we couldn't be birdying
you couldn't be birdying
they couldn't be birdying	I couldn't have birdied
you couldn't have birdied
he couldn't have birdied
we couldn't have birdied
you couldn't have birdied
they couldn't have birdied	I couldn't have been birdying
you couldn't have been birdying
he couldn't have been birdying
we couldn't have been birdying
you couldn't have been birdying
they couldn't have been birdying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I birdie?
could you birdie?
could he birdie?
could we birdie?
could you birdie?
could they birdie? 	could I be birdying?
could you be birdying?
could he be birdying?
could we be birdying?
could you be birdying?
could they be birdying? 	could I have birdied?
could you have birdied?
could he have birdied?
could we have birdied?
could you have birdied?
could they have birdied? 	could I have been birdying?
could you have been birdying?
could he have been birdying?
could we have been birdying?
could you have been birdying?
could they have been birdying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I birdie?
couldn't you birdie?
couldn't he birdie?
couldn't we birdie?
couldn't you birdie?
couldn't they birdie? 	couldn't I be birdying?
couldn't you be birdying?
couldn't he be birdying?
couldn't we be birdying?
couldn't you be birdying?
couldn't they be birdying? 	couldn't I have birdied?
couldn't you have birdied?
couldn't he have birdied?
couldn't we have birdied?
couldn't you have birdied?
couldn't they have birdied? 	couldn't I have been birdying?
couldn't you have been birdying?
couldn't he have been birdying?
couldn't we have been birdying?
couldn't you have been birdying?
couldn't they have been birdying?