may toughen
Verbe régulier : toughen - toughened- toughened
Traduction française : rendre plus solide - durcir 

Affirmation 	
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I may toughen
you may toughen
she may toughen
we may toughen
you may toughen
they may toughen 	I may be toughening
you may be toughening
she may be toughening
we may be toughening
you may be toughening
they may be toughening	I may have toughened
you may have toughened
she may have toughened
we may have toughened
you may have toughened
they may have toughened	I may have been toughening
you may have been toughening
she may have been toughening
we may have been toughening
you may have been toughening
they may have been toughening	

Négation 	
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I mayn't toughen
you mayn't toughen
she mayn't toughen
we mayn't toughen
you mayn't toughen
they mayn't toughen 	I mayn't be toughening
you mayn't be toughening
she mayn't be toughening
we mayn't be toughening
you mayn't be toughening
they mayn't be toughening	I mayn't have toughened
you mayn't have toughened
she mayn't have toughened
we mayn't have toughened
you mayn't have toughened
they mayn't have toughened	I mayn't have been toughening
you mayn't have been toughening
she mayn't have been toughening
we mayn't have been toughening
you mayn't have been toughening
they mayn't have been toughening	

Forme interrogative 	
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may I toughen?
may you toughen?
may she toughen?
may we toughen?
may you toughen?
may they toughen? 	may I be toughening?
may you be toughening?
may she be toughening?
may we be toughening?
may you be toughening?
may they be toughening? 	may I have toughened?
may you have toughened?
may she have toughened?
may we have toughened?
may you have toughened?
may they have toughened? 	may I have been toughening?
may you have been toughening?
may she have been toughening?
may we have been toughening?
may you have been toughening?
may they have been toughening? 	

Forme interro-négative 	
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mayn't I toughen?
mayn't you toughen?
mayn't she toughen?
mayn't we toughen?
mayn't you toughen?
mayn't they toughen? 	mayn't I be toughening?
mayn't you be toughening?
mayn't she be toughening?
mayn't we be toughening?
mayn't you be toughening?
mayn't they be toughening? 	mayn't I have toughened?
mayn't you have toughened?
mayn't she have toughened?
mayn't we have toughened?
mayn't you have toughened?
mayn't they have toughened? 	mayn't I have been toughening?
mayn't you have been toughening?
mayn't she have been toughening?
mayn't we have been toughening?
mayn't you have been toughening?
mayn't they have been toughening?