Conjugaison du verbe anglais OUGHT TO HAPPEN
Verbe régulier : happen -  happened - happened
Traduction française : arriver - se passer 
Affirmation
Forme simple
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it ought to happen
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Forme en V-ing
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it ought to be happening
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Perfect
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it ought to have happened
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Perfect en V-ing
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it ought to have been happening
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Négation
Forme simple
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it oughtn't to happen
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Forme en V-ing
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it oughtn't to be happening
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Perfect
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it oughtn't to have happened
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Perfect en V-ing
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it oughtn't to have been happening
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Forme interrogative
Forme simple
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ought to it happen?
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Forme en V-ing
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ought to it be happening?
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Perfect
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ought to it have happened?
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Perfect en V-ing
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ought to it have been happening?
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Forme interro-négative
Forme simple
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oughtn't it to happen?
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Forme en V-ing
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oughtn't it to be happening?
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Perfect
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oughtn't it to have happened?
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Perfect en V-ing
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oughtn't it to have been happening?
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Verbe au hasard
attain - audition - bake - cant - command - compare - complain - conjugate - copy - credit - customize - damage - deform - delete - double - envy - escalate - evacuate - handle - imagine - jeer - just - lam - lecher - misspell - need - note - overfill - pen - preserve - prevent - revert - separate - solve - spring - swear - to be - to do - to go - to have - treat - wade - wave - worry