shall undervalue
Regular verb: undervalue - undervalued- undervalued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll undervalue
you'll undervalue
she'll undervalue
we'll undervalue
you'll undervalue
they'll undervalue 	I'll be undervaluing
you'll be undervaluing
she'll be undervaluing
we'll be undervaluing
you'll be undervaluing
they'll be undervaluing	I'll have undervalued
you'll have undervalued
she'll have undervalued
we'll have undervalued
you'll have undervalued
they'll have undervalued	I'll have been undervaluing
you'll have been undervaluing
she'll have been undervaluing
we'll have been undervaluing
you'll have been undervaluing
they'll have been undervaluing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't undervalue
you shan't undervalue
she shan't undervalue
we shan't undervalue
you shan't undervalue
they shan't undervalue 	I shan't be undervaluing
you shan't be undervaluing
she shan't be undervaluing
we shan't be undervaluing
you shan't be undervaluing
they shan't be undervaluing	I shan't have undervalued
you shan't have undervalued
she shan't have undervalued
we shan't have undervalued
you shan't have undervalued
they shan't have undervalued	I shan't have been undervaluing
you shan't have been undervaluing
she shan't have been undervaluing
we shan't have been undervaluing
you shan't have been undervaluing
they shan't have been undervaluing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I undervalue?
shall you undervalue?
shall she undervalue?
shall we undervalue?
shall you undervalue?
shall they undervalue? 	shall I be undervaluing?
shall you be undervaluing?
shall she be undervaluing?
shall we be undervaluing?
shall you be undervaluing?
shall they be undervaluing? 	shall I have undervalued?
shall you have undervalued?
shall she have undervalued?
shall we have undervalued?
shall you have undervalued?
shall they have undervalued? 	shall I have been undervaluing?
shall you have been undervaluing?
shall she have been undervaluing?
shall we have been undervaluing?
shall you have been undervaluing?
shall they have been undervaluing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I undervalue?
shan't you undervalue?
shan't she undervalue?
shan't we undervalue?
shan't you undervalue?
shan't they undervalue? 	shan't I be undervaluing?
shan't you be undervaluing?
shan't she be undervaluing?
shan't we be undervaluing?
shan't you be undervaluing?
shan't they be undervaluing? 	shan't I have undervalued?
shan't you have undervalued?
shan't she have undervalued?
shan't we have undervalued?
shan't you have undervalued?
shan't they have undervalued? 	shan't I have been undervaluing?
shan't you have been undervaluing?
shan't she have been undervaluing?
shan't we have been undervaluing?
shan't you have been undervaluing?
shan't they have been undervaluing?