Conjugaison du verbe anglais MUST RAIN
Verbe régulier : rain -  rained - rained
Traduction française : pleuvoir - faire pleuvoir 
Affirmation
Forme simple
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it must rain
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Forme en V-ing
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it must be raining
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Perfect
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it must have rained
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Perfect en V-ing
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it must have been raining
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Négation
Forme simple
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it mustn't rain
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Forme en V-ing
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it mustn't be raining
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Perfect
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it mustn't have rained
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Perfect en V-ing
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it mustn't have been raining
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Forme interrogative
Forme simple
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must it rain?
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Forme en V-ing
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must it be raining?
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Perfect
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must it have rained?
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Perfect en V-ing
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must it have been raining?
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Forme interro-négative
Forme simple
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mustn't it rain?
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Forme en V-ing
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mustn't it be raining?
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Perfect
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mustn't it have rained?
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Perfect en V-ing
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mustn't it have been raining?
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Verbe au hasard
acclaim - author - bare - bet - bomb - commence - conduct - count - customize - discharge - divorce - earn - exclaim - fend - finish - fluster - hand - head - isle - jest - launder - manage - mix - must - need - over - review - saw - scream - separate - shake - sign - strap - sum - support - swap - swerve - to be - to do - to go - to have - undergo - undertain - wear