should snow
Verbo regular: snow - snowed- snowed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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it'd snow
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it'd be snowing
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it should've snowed
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it should've been snowing
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Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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it shouldn't snow
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it shouldn't be snowing
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it shouldn't have snowed
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it shouldn't have been snowing
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Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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should it snow?
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should it be snowing?
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should it have snowed?
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should it have been snowing?
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Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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shouldn't it snow?
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shouldn't it be snowing?
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shouldn't it have snowed?
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shouldn't it have been snowing?
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