may happen
Regelmä&szlig;iges Verb: happen - happened- happened

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
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-
it may happen
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-
- 	-
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it may be happening
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-
- 	-
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it may have happened
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-
- 	-
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it may have been happening
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-
- 	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
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-
it mayn't happen
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-
- 	-
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it mayn't be happening
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-
- 	-
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it mayn't have happened
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-
- 	-
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it mayn't have been happening
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-
- 	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
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-
may it happen?
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-
- 	-
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may it be happening?
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-
- 	-
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may it have happened?
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-
- 	-
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may it have been happening?
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-
- 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
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-
mayn't it happen?
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-
- 	-
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mayn't it be happening?
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-
- 	-
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mayn't it have happened?
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-
- 	-
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mayn't it have been happening?
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