Conjugaison du verbe anglais COULD THUNDER
Verbe régulier : thunder -  thundered - thundered
Traduction française : tonner - lancer d'une voix tonitruante ou tonnante 
Affirmation
Forme simple
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it could thunder
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Forme en V-ing
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it could be thundering
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Perfect
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it could have thundered
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Perfect en V-ing
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it could have been thundering
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Négation
Forme simple
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it could not thunder
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Forme en V-ing
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it could not be thundering
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Perfect
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it could not have thundered
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Perfect en V-ing
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it could not have been thundering
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Forme interrogative
Forme simple
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could it thunder?
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Forme en V-ing
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could it be thundering?
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Perfect
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could it have thundered?
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Perfect en V-ing
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could it have been thundering?
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Forme interro-négative
Forme simple
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could it not thunder?
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Forme en V-ing
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could it not be thundering?
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Perfect
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could it not have thundered?
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Perfect en V-ing
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could it not have been thundering?
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Verbe au hasard
accomplish - addict - admire - alter - arrive - bear - broadcast - butt - cab - check - command - contest - convict - crawl - cut - earn - frock - gab - head - highlight - hint - hug - inject - kayak - kill - knit - launder - listen - make - manufacture - organize - paint - participate - push - rest - set - shrill - slay - slide - to be - to do - to go - to have - transmit