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 must not thunder
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Forme en V-ing
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it must not be thundering
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Perfect
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it must not have thundered
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Perfect en V-ing
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it must not 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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must it not thunder?
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Forme en V-ing
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must it not be thundering?
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Perfect
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must it not have thundered?
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Perfect en V-ing
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must it not have been thundering?
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Verbe au hasard
associate - build - confer - cook - damage - discharge - disconnect - eat - echo - entertain - establish - exaggerate - exploit - explore - fault - fleer - flood - grant - growl - head - kick - ko - monger - mosh - muss - nicker - operate - organize - paint - pet - pray - resemble - see - seem - slow - sum - to be - to do - to go - to have - try - twist - walk - wear