may underperform
Verbo regular: underperform - underperformed- underperformed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may underperform
you may underperform
he may underperform
we may underperform
you may underperform
they may underperform 	I may be underperforming
you may be underperforming
he may be underperforming
we may be underperforming
you may be underperforming
they may be underperforming	I may have underperformed
you may have underperformed
he may have underperformed
we may have underperformed
you may have underperformed
they may have underperformed	I may have been underperforming
you may have been underperforming
he may have been underperforming
we may have been underperforming
you may have been underperforming
they may have been underperforming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not underperform
you may not underperform
he may not underperform
we may not underperform
you may not underperform
they may not underperform 	I may not be underperforming
you may not be underperforming
he may not be underperforming
we may not be underperforming
you may not be underperforming
they may not be underperforming	I may not have underperformed
you may not have underperformed
he may not have underperformed
we may not have underperformed
you may not have underperformed
they may not have underperformed	I may not have been underperforming
you may not have been underperforming
he may not have been underperforming
we may not have been underperforming
you may not have been underperforming
they may not have been underperforming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I underperform?
may you underperform?
may he underperform?
may we underperform?
may you underperform?
may they underperform? 	may I be underperforming?
may you be underperforming?
may he be underperforming?
may we be underperforming?
may you be underperforming?
may they be underperforming? 	may I have underperformed?
may you have underperformed?
may he have underperformed?
may we have underperformed?
may you have underperformed?
may they have underperformed? 	may I have been underperforming?
may you have been underperforming?
may he have been underperforming?
may we have been underperforming?
may you have been underperforming?
may they have been underperforming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not underperform?
may you not underperform?
may he not underperform?
may we not underperform?
may you not underperform?
may they not underperform? 	may I not be underperforming?
may you not be underperforming?
may he not be underperforming?
may we not be underperforming?
may you not be underperforming?
may they not be underperforming? 	may I not have underperformed?
may you not have underperformed?
may he not have underperformed?
may we not have underperformed?
may you not have underperformed?
may they not have underperformed? 	may I not have been underperforming?
may you not have been underperforming?
may he not have been underperforming?
may we not have been underperforming?
may you not have been underperforming?
may they not have been underperforming?