will rain
Regular verb: rain - rained- rained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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it will rain
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it will be raining
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it will have rained
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it will have been raining
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Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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it will not rain
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it will not be raining
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it will not have rained
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it will not have been raining
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Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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will it rain?
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will it be raining?
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will it have rained?
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will it have been raining?
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Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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will it not rain?
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will it not be raining?
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will it not have rained?
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will it not have been raining?
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