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
aim - bully - cake - climb - comfort - commit - compensate - compute - conclude - deem - devil - disagree - disappoint - drive - dull - escalate - faint - fear - forecast - guarantee - hit - hoop - knock - lead - lecher - liven - maim - market - mast - mat - measure - mosh - move - open - pedal - replace - sing - steal - to be - to do - to go - to have - wake - withdraw