English verb conjugation
SHALL INVOICE

Regular verb: invoice - invoiced - invoiced

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?