may prevent
Verbe régulier : prevent - prevented- prevented
Traduction française : éviter - prévenir 

Affirmation 	
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I may prevent
you may prevent
she may prevent
we may prevent
you may prevent
they may prevent 	I may be preventing
you may be preventing
she may be preventing
we may be preventing
you may be preventing
they may be preventing	I may have prevented
you may have prevented
she may have prevented
we may have prevented
you may have prevented
they may have prevented	I may have been preventing
you may have been preventing
she may have been preventing
we may have been preventing
you may have been preventing
they may have been preventing	

Négation 	
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I mayn't prevent
you mayn't prevent
she mayn't prevent
we mayn't prevent
you mayn't prevent
they mayn't prevent 	I mayn't be preventing
you mayn't be preventing
she mayn't be preventing
we mayn't be preventing
you mayn't be preventing
they mayn't be preventing	I mayn't have prevented
you mayn't have prevented
she mayn't have prevented
we mayn't have prevented
you mayn't have prevented
they mayn't have prevented	I mayn't have been preventing
you mayn't have been preventing
she mayn't have been preventing
we mayn't have been preventing
you mayn't have been preventing
they mayn't have been preventing	

Forme interrogative 	
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may I prevent?
may you prevent?
may she prevent?
may we prevent?
may you prevent?
may they prevent? 	may I be preventing?
may you be preventing?
may she be preventing?
may we be preventing?
may you be preventing?
may they be preventing? 	may I have prevented?
may you have prevented?
may she have prevented?
may we have prevented?
may you have prevented?
may they have prevented? 	may I have been preventing?
may you have been preventing?
may she have been preventing?
may we have been preventing?
may you have been preventing?
may they have been preventing? 	

Forme interro-négative 	
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mayn't I prevent?
mayn't you prevent?
mayn't she prevent?
mayn't we prevent?
mayn't you prevent?
mayn't they prevent? 	mayn't I be preventing?
mayn't you be preventing?
mayn't she be preventing?
mayn't we be preventing?
mayn't you be preventing?
mayn't they be preventing? 	mayn't I have prevented?
mayn't you have prevented?
mayn't she have prevented?
mayn't we have prevented?
mayn't you have prevented?
mayn't they have prevented? 	mayn't I have been preventing?
mayn't you have been preventing?
mayn't she have been preventing?
mayn't we have been preventing?
mayn't you have been preventing?
mayn't they have been preventing?