English verb conjugation
MUST EXPENSE

Regular verb: expense - expensed - expensed

Affirmation

Simple form	V-ing form
I must expense you must expense he must expense we must expense you must expense they must expense	I must be expensing you must be expensing he must be expensing we must be expensing you must be expensing they must be expensing
Perfect	V-ing perfect
I must have expensed you must have expensed he must have expensed we must have expensed you must have expensed they must have expensed	I must have been expensing you must have been expensing he must have been expensing we must have been expensing you must have been expensing they must have been expensing

Negation

Simple form	V-ing form
I mustn't expense you mustn't expense he mustn't expense we mustn't expense you mustn't expense they mustn't expense	I mustn't be expensing you mustn't be expensing he mustn't be expensing we mustn't be expensing you mustn't be expensing they mustn't be expensing
Perfect	V-ing perfect
I mustn't have expensed you mustn't have expensed he mustn't have expensed we mustn't have expensed you mustn't have expensed they mustn't have expensed	I mustn't have been expensing you mustn't have been expensing he mustn't have been expensing we mustn't have been expensing you mustn't have been expensing they mustn't have been expensing

Interrogative form

Simple form	V-ing form
must I expense? must you expense? must he expense? must we expense? must you expense? must they expense?	must I be expensing? must you be expensing? must he be expensing? must we be expensing? must you be expensing? must they be expensing?
Perfect	V-ing perfect
must I have expensed? must you have expensed? must he have expensed? must we have expensed? must you have expensed? must they have expensed?	must I have been expensing? must you have been expensing? must he have been expensing? must we have been expensing? must you have been expensing? must they have been expensing?

Interro-negative form

Simple form	V-ing form
mustn't I expense? mustn't you expense? mustn't he expense? mustn't we expense? mustn't you expense? mustn't they expense?	mustn't I be expensing? mustn't you be expensing? mustn't he be expensing? mustn't we be expensing? mustn't you be expensing? mustn't they be expensing?
Perfect	V-ing perfect
mustn't I have expensed? mustn't you have expensed? mustn't he have expensed? mustn't we have expensed? mustn't you have expensed? mustn't they have expensed?	mustn't I have been expensing? mustn't you have been expensing? mustn't he have been expensing? mustn't we have been expensing? mustn't you have been expensing? mustn't they have been expensing?