may impair
Verbe régulier : impair - impaired- impaired
Traduction française : diminuer - détériorer 

Affirmation 	
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I may impair
you may impair
he may impair
we may impair
you may impair
they may impair 	I may be impairing
you may be impairing
he may be impairing
we may be impairing
you may be impairing
they may be impairing	I may have impaired
you may have impaired
he may have impaired
we may have impaired
you may have impaired
they may have impaired	I may have been impairing
you may have been impairing
he may have been impairing
we may have been impairing
you may have been impairing
they may have been impairing	

Négation 	
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I mayn't impair
you mayn't impair
he mayn't impair
we mayn't impair
you mayn't impair
they mayn't impair 	I mayn't be impairing
you mayn't be impairing
he mayn't be impairing
we mayn't be impairing
you mayn't be impairing
they mayn't be impairing	I mayn't have impaired
you mayn't have impaired
he mayn't have impaired
we mayn't have impaired
you mayn't have impaired
they mayn't have impaired	I mayn't have been impairing
you mayn't have been impairing
he mayn't have been impairing
we mayn't have been impairing
you mayn't have been impairing
they mayn't have been impairing	

Forme interrogative 	
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may I impair?
may you impair?
may he impair?
may we impair?
may you impair?
may they impair? 	may I be impairing?
may you be impairing?
may he be impairing?
may we be impairing?
may you be impairing?
may they be impairing? 	may I have impaired?
may you have impaired?
may he have impaired?
may we have impaired?
may you have impaired?
may they have impaired? 	may I have been impairing?
may you have been impairing?
may he have been impairing?
may we have been impairing?
may you have been impairing?
may they have been impairing? 	

Forme interro-négative 	
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mayn't I impair?
mayn't you impair?
mayn't he impair?
mayn't we impair?
mayn't you impair?
mayn't they impair? 	mayn't I be impairing?
mayn't you be impairing?
mayn't he be impairing?
mayn't we be impairing?
mayn't you be impairing?
mayn't they be impairing? 	mayn't I have impaired?
mayn't you have impaired?
mayn't he have impaired?
mayn't we have impaired?
mayn't you have impaired?
mayn't they have impaired? 	mayn't I have been impairing?
mayn't you have been impairing?
mayn't he have been impairing?
mayn't we have been impairing?
mayn't you have been impairing?
mayn't they have been impairing?