I could worry you could worry he could worry we could worry you could worry they could worry
Forme en V-ing
I could be worrying you could be worrying he could be worrying we could be worrying you could be worrying they could be worrying
Perfect
I could have worried you could have worried he could have worried we could have worried you could have worried they could have worried
Perfect en V-ing
I could have been worrying you could have been worrying he could have been worrying we could have been worrying you could have been worrying they could have been worrying
Négation
Forme simple
I couldn't worry you couldn't worry he couldn't worry we couldn't worry you couldn't worry they couldn't worry
Forme en V-ing
I couldn't be worrying you couldn't be worrying he couldn't be worrying we couldn't be worrying you couldn't be worrying they couldn't be worrying
Perfect
I couldn't have worried you couldn't have worried he couldn't have worried we couldn't have worried you couldn't have worried they couldn't have worried
Perfect en V-ing
I couldn't have been worrying you couldn't have been worrying he couldn't have been worrying we couldn't have been worrying you couldn't have been worrying they couldn't have been worrying
Forme interrogative
Forme simple
could I worry? could you worry? could he worry? could we worry? could you worry? could they worry?
Forme en V-ing
could I be worrying? could you be worrying? could he be worrying? could we be worrying? could you be worrying? could they be worrying?
Perfect
could I have worried? could you have worried? could he have worried? could we have worried? could you have worried? could they have worried?
Perfect en V-ing
could I have been worrying? could you have been worrying? could he have been worrying? could we have been worrying? could you have been worrying? could they have been worrying?
Forme interro-négative
Forme simple
couldn't I worry? couldn't you worry? couldn't he worry? couldn't we worry? couldn't you worry? couldn't they worry?
Forme en V-ing
couldn't I be worrying? couldn't you be worrying? couldn't he be worrying? couldn't we be worrying? couldn't you be worrying? couldn't they be worrying?
Perfect
couldn't I have worried? couldn't you have worried? couldn't he have worried? couldn't we have worried? couldn't you have worried? couldn't they have worried?
Perfect en V-ing
couldn't I have been worrying? couldn't you have been worrying? couldn't he have been worrying? couldn't we have been worrying? couldn't you have been worrying? couldn't they have been worrying?