Conjugaison du verbe anglais
COULD YAWN

Verbe régulier : yawn - yawned - yawned
Traduction française : bâiller - dire en bâillant

Affirmation

Forme simple	Forme en V-ing
I could yawn you could yawn he could yawn we could yawn you could yawn they could yawn	I could be yawning you could be yawning he could be yawning we could be yawning you could be yawning they could be yawning
Perfect	Perfect en V-ing
I could have yawned you could have yawned he could have yawned we could have yawned you could have yawned they could have yawned	I could have been yawning you could have been yawning he could have been yawning we could have been yawning you could have been yawning they could have been yawning

Négation

Forme simple	Forme en V-ing
I couldn't yawn you couldn't yawn he couldn't yawn we couldn't yawn you couldn't yawn they couldn't yawn	I couldn't be yawning you couldn't be yawning he couldn't be yawning we couldn't be yawning you couldn't be yawning they couldn't be yawning
Perfect	Perfect en V-ing
I couldn't have yawned you couldn't have yawned he couldn't have yawned we couldn't have yawned you couldn't have yawned they couldn't have yawned	I couldn't have been yawning you couldn't have been yawning he couldn't have been yawning we couldn't have been yawning you couldn't have been yawning they couldn't have been yawning

Forme interrogative

Forme simple	Forme en V-ing
could I yawn? could you yawn? could he yawn? could we yawn? could you yawn? could they yawn?	could I be yawning? could you be yawning? could he be yawning? could we be yawning? could you be yawning? could they be yawning?
Perfect	Perfect en V-ing
could I have yawned? could you have yawned? could he have yawned? could we have yawned? could you have yawned? could they have yawned?	could I have been yawning? could you have been yawning? could he have been yawning? could we have been yawning? could you have been yawning? could they have been yawning?

Forme interro-négative

Forme simple	Forme en V-ing
couldn't I yawn? couldn't you yawn? couldn't he yawn? couldn't we yawn? couldn't you yawn? couldn't they yawn?	couldn't I be yawning? couldn't you be yawning? couldn't he be yawning? couldn't we be yawning? couldn't you be yawning? couldn't they be yawning?
Perfect	Perfect en V-ing
couldn't I have yawned? couldn't you have yawned? couldn't he have yawned? couldn't we have yawned? couldn't you have yawned? couldn't they have yawned?	couldn't I have been yawning? couldn't you have been yawning? couldn't he have been yawning? couldn't we have been yawning? couldn't you have been yawning? couldn't they have been yawning?