may base
Verbo regular: base - based- based

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may base
you may base
he may base
we may base
you may base
they may base 	I may be basing
you may be basing
he may be basing
we may be basing
you may be basing
they may be basing	I may have based
you may have based
he may have based
we may have based
you may have based
they may have based	I may have been basing
you may have been basing
he may have been basing
we may have been basing
you may have been basing
they may have been basing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not base
you may not base
he may not base
we may not base
you may not base
they may not base 	I may not be basing
you may not be basing
he may not be basing
we may not be basing
you may not be basing
they may not be basing	I may not have based
you may not have based
he may not have based
we may not have based
you may not have based
they may not have based	I may not have been basing
you may not have been basing
he may not have been basing
we may not have been basing
you may not have been basing
they may not have been basing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I base?
may you base?
may he base?
may we base?
may you base?
may they base? 	may I be basing?
may you be basing?
may he be basing?
may we be basing?
may you be basing?
may they be basing? 	may I have based?
may you have based?
may he have based?
may we have based?
may you have based?
may they have based? 	may I have been basing?
may you have been basing?
may he have been basing?
may we have been basing?
may you have been basing?
may they have been basing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not base?
may you not base?
may he not base?
may we not base?
may you not base?
may they not base? 	may I not be basing?
may you not be basing?
may he not be basing?
may we not be basing?
may you not be basing?
may they not be basing? 	may I not have based?
may you not have based?
may he not have based?
may we not have based?
may you not have based?
may they not have based? 	may I not have been basing?
may you not have been basing?
may he not have been basing?
may we not have been basing?
may you not have been basing?
may they not have been basing?