shall underperform
Verbe régulier : underperform - underperformed- underperformed
Traduction française : rester en deçà de ses possibilités 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I'll underperform
you'll underperform
she'll underperform
we'll underperform
you'll underperform
they'll underperform 	I'll be underperforming
you'll be underperforming
she'll be underperforming
we'll be underperforming
you'll be underperforming
they'll be underperforming	I'll have underperformed
you'll have underperformed
she'll have underperformed
we'll have underperformed
you'll have underperformed
they'll have underperformed	I'll have been underperforming
you'll have been underperforming
she'll have been underperforming
we'll have been underperforming
you'll have been underperforming
they'll have been underperforming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I shan't underperform
you shan't underperform
she shan't underperform
we shan't underperform
you shan't underperform
they shan't underperform 	I shan't be underperforming
you shan't be underperforming
she shan't be underperforming
we shan't be underperforming
you shan't be underperforming
they shan't be underperforming	I shan't have underperformed
you shan't have underperformed
she shan't have underperformed
we shan't have underperformed
you shan't have underperformed
they shan't have underperformed	I shan't have been underperforming
you shan't have been underperforming
she shan't have been underperforming
we shan't have been underperforming
you shan't have been underperforming
they shan't have been underperforming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
shall I underperform?
shall you underperform?
shall she underperform?
shall we underperform?
shall you underperform?
shall they underperform? 	shall I be underperforming?
shall you be underperforming?
shall she be underperforming?
shall we be underperforming?
shall you be underperforming?
shall they be underperforming? 	shall I have underperformed?
shall you have underperformed?
shall she 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 she have been underperforming?
shall we have been underperforming?
shall you have been underperforming?
shall they have been underperforming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
shan't I underperform?
shan't you underperform?
shan't she underperform?
shan't we underperform?
shan't you underperform?
shan't they underperform? 	shan't I be underperforming?
shan't you be underperforming?
shan't she be underperforming?
shan't we be underperforming?
shan't you be underperforming?
shan't they be underperforming? 	shan't I have underperformed?
shan't you have underperformed?
shan't she have underperformed?
shan't we have underperformed?
shan't you have underperformed?
shan't they have underperformed? 	shan't I have been underperforming?
shan't you have been underperforming?
shan't she have been underperforming?
shan't we have been underperforming?
shan't you have been underperforming?
shan't they have been underperforming?