may rain
Verbo regular: rain - rained- rained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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-
it may rain
-
-
- 	-
-
it may be raining
-
-
- 	-
-
it may have rained
-
-
- 	-
-
it may have been raining
-
-
- 	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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-
it mayn't rain
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-
- 	-
-
it mayn't be raining
-
-
- 	-
-
it mayn't have rained
-
-
- 	-
-
it mayn't have been raining
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-
- 	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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may it rain?
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-
- 	-
-
may it be raining?
-
-
- 	-
-
may it have rained?
-
-
- 	-
-
may it have been raining?
-
-
- 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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-
mayn't it rain?
-
-
- 	-
-
mayn't it be raining?
-
-
- 	-
-
mayn't it have rained?
-
-
- 	-
-
mayn't it have been raining?
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-
-