ought to snow
Verbo regular: snow - snowed- snowed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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it ought to snow
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it ought to be snowing
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-
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it ought to have snowed
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it ought to have been snowing
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Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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it oughtn't to snow
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it oughtn't to be snowing
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-
- 	-
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it oughtn't to have snowed
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-
- 	-
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it oughtn't to have been snowing
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Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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ought to it snow?
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ought to it be snowing?
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-
- 	-
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ought to it have snowed?
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-
- 	-
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ought to it have been snowing?
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-
- 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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oughtn't it to snow?
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-
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oughtn't it to be snowing?
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-
- 	-
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oughtn't it to have snowed?
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-
- 	-
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oughtn't it to have been snowing?
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