may authenticate
Verbo regular: authenticate - authenticated- authenticated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may authenticate
you may authenticate
he may authenticate
we may authenticate
you may authenticate
they may authenticate 	I may be authenticating
you may be authenticating
he may be authenticating
we may be authenticating
you may be authenticating
they may be authenticating	I may have authenticated
you may have authenticated
he may have authenticated
we may have authenticated
you may have authenticated
they may have authenticated	I may have been authenticating
you may have been authenticating
he may have been authenticating
we may have been authenticating
you may have been authenticating
they may have been authenticating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not authenticate
you may not authenticate
he may not authenticate
we may not authenticate
you may not authenticate
they may not authenticate 	I may not be authenticating
you may not be authenticating
he may not be authenticating
we may not be authenticating
you may not be authenticating
they may not be authenticating	I may not have authenticated
you may not have authenticated
he may not have authenticated
we may not have authenticated
you may not have authenticated
they may not have authenticated	I may not have been authenticating
you may not have been authenticating
he may not have been authenticating
we may not have been authenticating
you may not have been authenticating
they may not have been authenticating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I authenticate?
may you authenticate?
may he authenticate?
may we authenticate?
may you authenticate?
may they authenticate? 	may I be authenticating?
may you be authenticating?
may he be authenticating?
may we be authenticating?
may you be authenticating?
may they be authenticating? 	may I have authenticated?
may you have authenticated?
may he have authenticated?
may we have authenticated?
may you have authenticated?
may they have authenticated? 	may I have been authenticating?
may you have been authenticating?
may he have been authenticating?
may we have been authenticating?
may you have been authenticating?
may they have been authenticating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not authenticate?
may you not authenticate?
may he not authenticate?
may we not authenticate?
may you not authenticate?
may they not authenticate? 	may I not be authenticating?
may you not be authenticating?
may he not be authenticating?
may we not be authenticating?
may you not be authenticating?
may they not be authenticating? 	may I not have authenticated?
may you not have authenticated?
may he not have authenticated?
may we not have authenticated?
may you not have authenticated?
may they not have authenticated? 	may I not have been authenticating?
may you not have been authenticating?
may he not have been authenticating?
may we not have been authenticating?
may you not have been authenticating?
may they not have been authenticating?