Conjugaison du verbe anglais CAN HAPPEN
Verbe régulier : happen -  happened - happened
Traduction française : arriver - se passer 
Affirmation
Forme simple
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it can happen
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Forme en V-ing
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it can be happening
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Perfect
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it can have happened
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Perfect en V-ing
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it can have been happening
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Négation
Forme simple
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it can't happen
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Forme en V-ing
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it can't be happening
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Perfect
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it can't have happened
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Perfect en V-ing
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it can't have been happening
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Forme interrogative
Forme simple
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can it happen?
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Forme en V-ing
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can it be happening?
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Perfect
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can it have happened?
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Perfect en V-ing
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can it have been happening?
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Forme interro-négative
Forme simple
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can't it happen?
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Forme en V-ing
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can't it be happening?
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Perfect
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can't it have happened?
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Perfect en V-ing
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can't it have been happening?
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Verbe au hasard
adopt - alter - annoy - bare - blow - cast - catch - caution - chop - commandeer - compile - conjugate - convict - creep - deform - destroy - endeavor - explode - gather - grant - hang - hint - imprison - index - intensify - jog - leak - lessen - mess - need - neigh - notice - save - shout - sign - ski - steal - stir - stock - tiptoe - to be - to do - to go - to have