shall invoice
Regular verb: invoice - invoiced- invoiced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall invoice
you shall invoice
she shall invoice
we shall invoice
you shall invoice
they shall invoice 	I shall be invoicing
you shall be invoicing
she shall be invoicing
we shall be invoicing
you shall be invoicing
they shall be invoicing	I shall have invoiced
you shall have invoiced
she shall have invoiced
we shall have invoiced
you shall have invoiced
they shall have invoiced	I shall have been invoicing
you shall have been invoicing
she shall have been invoicing
we shall have been invoicing
you shall have been invoicing
they shall have been invoicing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shall not invoice
you shall not invoice
she shall not invoice
we shall not invoice
you shall not invoice
they shall not invoice 	I shall not be invoicing
you shall not be invoicing
she shall not be invoicing
we shall not be invoicing
you shall not be invoicing
they shall not be invoicing	I shall not have invoiced
you shall not have invoiced
she shall not have invoiced
we shall not have invoiced
you shall not have invoiced
they shall not have invoiced	I shall not have been invoicing
you shall not have been invoicing
she shall not have been invoicing
we shall not have been invoicing
you shall not have been invoicing
they shall not have been invoicing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I invoice?
shall you invoice?
shall she invoice?
shall we invoice?
shall you invoice?
shall they invoice? 	shall I be invoicing?
shall you be invoicing?
shall she be invoicing?
shall we be invoicing?
shall you be invoicing?
shall they be invoicing? 	shall I have invoiced?
shall you have invoiced?
shall she have invoiced?
shall we have invoiced?
shall you have invoiced?
shall they have invoiced? 	shall I have been invoicing?
shall you have been invoicing?
shall she have been invoicing?
shall we have been invoicing?
shall you have been invoicing?
shall they have been invoicing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I not invoice?
shall you not invoice?
shall she not invoice?
shall we not invoice?
shall you not invoice?
shall they not invoice? 	shall I not be invoicing?
shall you not be invoicing?
shall she not be invoicing?
shall we not be invoicing?
shall you not be invoicing?
shall they not be invoicing? 	shall I not have invoiced?
shall you not have invoiced?
shall she not have invoiced?
shall we not have invoiced?
shall you not have invoiced?
shall they not have invoiced? 	shall I not have been invoicing?
shall you not have been invoicing?
shall she not have been invoicing?
shall we not have been invoicing?
shall you not have been invoicing?
shall they not have been invoicing?