shall underperform
Verbo regular: underperform - underperformed- underperformed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shall underperform
you shall underperform
he shall underperform
we shall underperform
you shall underperform
they shall underperform 	I shall be underperforming
you shall be underperforming
he shall be underperforming
we shall be underperforming
you shall be underperforming
they shall be underperforming	I shall have underperformed
you shall have underperformed
he shall have underperformed
we shall have underperformed
you shall have underperformed
they shall have underperformed	I shall have been underperforming
you shall have been underperforming
he shall have been underperforming
we shall have been underperforming
you shall have been underperforming
they shall have been underperforming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shall not underperform
you shall not underperform
he shall not underperform
we shall not underperform
you shall not underperform
they shall not underperform 	I shall not be underperforming
you shall not be underperforming
he shall not be underperforming
we shall not be underperforming
you shall not be underperforming
they shall not be underperforming	I shall not have underperformed
you shall not have underperformed
he shall not have underperformed
we shall not have underperformed
you shall not have underperformed
they shall not have underperformed	I shall not have been underperforming
you shall not have been underperforming
he shall not have been underperforming
we shall not have been underperforming
you shall not have been underperforming
they shall not have been underperforming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shall I underperform?
shall you underperform?
shall he underperform?
shall we underperform?
shall you underperform?
shall they underperform? 	shall I be underperforming?
shall you be underperforming?
shall he be underperforming?
shall we be underperforming?
shall you be underperforming?
shall they be underperforming? 	shall I have underperformed?
shall you have underperformed?
shall he have underperformed?
shall we have underperformed?
shall you have underperformed?
shall they have underperformed? 	shall I have been underperforming?
shall you have been underperforming?
shall he have been underperforming?
shall we have been underperforming?
shall you have been underperforming?
shall they have been underperforming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shall I not underperform?
shall you not underperform?
shall he not underperform?
shall we not underperform?
shall you not underperform?
shall they not underperform? 	shall I not be underperforming?
shall you not be underperforming?
shall he not be underperforming?
shall we not be underperforming?
shall you not be underperforming?
shall they not be underperforming? 	shall I not have underperformed?
shall you not have underperformed?
shall he not have underperformed?
shall we not have underperformed?
shall you not have underperformed?
shall they not have underperformed? 	shall I not have been underperforming?
shall you not have been underperforming?
shall he not have been underperforming?
shall we not have been underperforming?
shall you not have been underperforming?
shall they not have been underperforming?