English verb conjugation
MUST SUBTOTAL

Regular verb: subtotal - subtotaled - subtotaled

Affirmation

Simple form	V-ing form
I must subtotal you must subtotal he must subtotal we must subtotal you must subtotal they must subtotal	I must be subtotaling you must be subtotaling he must be subtotaling we must be subtotaling you must be subtotaling they must be subtotaling
Perfect	V-ing perfect
I must have subtotaled you must have subtotaled he must have subtotaled we must have subtotaled you must have subtotaled they must have subtotaled	I must have been subtotaling you must have been subtotaling he must have been subtotaling we must have been subtotaling you must have been subtotaling they must have been subtotaling

Negation

Simple form	V-ing form
I must not subtotal you must not subtotal he must not subtotal we must not subtotal you must not subtotal they must not subtotal	I must not be subtotaling you must not be subtotaling he must not be subtotaling we must not be subtotaling you must not be subtotaling they must not be subtotaling
Perfect	V-ing perfect
I must not have subtotaled you must not have subtotaled he must not have subtotaled we must not have subtotaled you must not have subtotaled they must not have subtotaled	I must not have been subtotaling you must not have been subtotaling he must not have been subtotaling we must not have been subtotaling you must not have been subtotaling they must not have been subtotaling

Interrogative form

Simple form	V-ing form
must I subtotal? must you subtotal? must he subtotal? must we subtotal? must you subtotal? must they subtotal?	must I be subtotaling? must you be subtotaling? must he be subtotaling? must we be subtotaling? must you be subtotaling? must they be subtotaling?
Perfect	V-ing perfect
must I have subtotaled? must you have subtotaled? must he have subtotaled? must we have subtotaled? must you have subtotaled? must they have subtotaled?	must I have been subtotaling? must you have been subtotaling? must he have been subtotaling? must we have been subtotaling? must you have been subtotaling? must they have been subtotaling?

Interro-negative form

Simple form	V-ing form
must I not subtotal? must you not subtotal? must he not subtotal? must we not subtotal? must you not subtotal? must they not subtotal?	must I not be subtotaling? must you not be subtotaling? must he not be subtotaling? must we not be subtotaling? must you not be subtotaling? must they not be subtotaling?
Perfect	V-ing perfect
must I not have subtotaled? must you not have subtotaled? must he not have subtotaled? must we not have subtotaled? must you not have subtotaled? must they not have subtotaled?	must I not have been subtotaling? must you not have been subtotaling? must he not have been subtotaling? must we not have been subtotaling? must you not have been subtotaling? must they not have been subtotaling?