Conjugaison du verbe anglais MUST THUNDER
Verbe régulier : thunder -  thundered - thundered
Traduction française : tonner - lancer d'une voix tonitruante ou tonnante 
Affirmation
Forme simple
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it must thunder
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Forme en V-ing
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it must be thundering
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Perfect
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it must have thundered
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Perfect en V-ing
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it must have been thundering
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Négation
Forme simple
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it mustn't thunder
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Forme en V-ing
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it mustn't be thundering
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Perfect
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it mustn't have thundered
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Perfect en V-ing
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it mustn't have been thundering
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Forme interrogative
Forme simple
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must it thunder?
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Forme en V-ing
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must it be thundering?
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Perfect
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must it have thundered?
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Perfect en V-ing
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must it have been thundering?
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Forme interro-négative
Forme simple
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mustn't it thunder?
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Forme en V-ing
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mustn't it be thundering?
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Perfect
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mustn't it have thundered?
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Perfect en V-ing
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mustn't it have been thundering?
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Verbe au hasard
admit - assign - attend - bask - bless - bore - broadcast - cancel - capture - climb - coincide - deal - decommission - descend - divorce - donate - drown - dry - encourage - exhaust - fold - forward - founder - free - gift - interview - liven - make - miss - mosh - ordain - photograph - prevent - prove - reconcile - set - sew - sit - suggest - thank - to be - to do - to go - to have