shall underprop
Regular verb: underprop - underproped- underproped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll underprop
you'll underprop
she'll underprop
we'll underprop
you'll underprop
they'll underprop 	I'll be underproping
you'll be underproping
she'll be underproping
we'll be underproping
you'll be underproping
they'll be underproping	I'll have underproped
you'll have underproped
she'll have underproped
we'll have underproped
you'll have underproped
they'll have underproped	I'll have been underproping
you'll have been underproping
she'll have been underproping
we'll have been underproping
you'll have been underproping
they'll have been underproping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't underprop
you shan't underprop
she shan't underprop
we shan't underprop
you shan't underprop
they shan't underprop 	I shan't be underproping
you shan't be underproping
she shan't be underproping
we shan't be underproping
you shan't be underproping
they shan't be underproping	I shan't have underproped
you shan't have underproped
she shan't have underproped
we shan't have underproped
you shan't have underproped
they shan't have underproped	I shan't have been underproping
you shan't have been underproping
she shan't have been underproping
we shan't have been underproping
you shan't have been underproping
they shan't have been underproping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I underprop?
shall you underprop?
shall she underprop?
shall we underprop?
shall you underprop?
shall they underprop? 	shall I be underproping?
shall you be underproping?
shall she be underproping?
shall we be underproping?
shall you be underproping?
shall they be underproping? 	shall I have underproped?
shall you have underproped?
shall she have underproped?
shall we have underproped?
shall you have underproped?
shall they have underproped? 	shall I have been underproping?
shall you have been underproping?
shall she have been underproping?
shall we have been underproping?
shall you have been underproping?
shall they have been underproping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I underprop?
shan't you underprop?
shan't she underprop?
shan't we underprop?
shan't you underprop?
shan't they underprop? 	shan't I be underproping?
shan't you be underproping?
shan't she be underproping?
shan't we be underproping?
shan't you be underproping?
shan't they be underproping? 	shan't I have underproped?
shan't you have underproped?
shan't she have underproped?
shan't we have underproped?
shan't you have underproped?
shan't they have underproped? 	shan't I have been underproping?
shan't you have been underproping?
shan't she have been underproping?
shan't we have been underproping?
shan't you have been underproping?
shan't they have been underproping?