must expense
Verbe régulier : expense - expensed- expensed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must expense
you must expense
she must expense
we must expense
you must expense
they must expense 	I must be expensing
you must be expensing
she must be expensing
we must be expensing
you must be expensing
they must be expensing	I must have expensed
you must have expensed
she 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
she must have been expensing
we must have been expensing
you must have been expensing
they must have been expensing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not expense
you must not expense
she must not expense
we must not expense
you must not expense
they must not expense 	I must not be expensing
you must not be expensing
she must not be expensing
we must not be expensing
you must not be expensing
they must not be expensing	I must not have expensed
you must not have expensed
she must not have expensed
we must not have expensed
you must not have expensed
they must not have expensed	I must not have been expensing
you must not have been expensing
she must not have been expensing
we must not have been expensing
you must not have been expensing
they must not have been expensing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I expense?
must you expense?
must she expense?
must we expense?
must you expense?
must they expense? 	must I be expensing?
must you be expensing?
must she be expensing?
must we be expensing?
must you be expensing?
must they be expensing? 	must I have expensed?
must you have expensed?
must she 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 she have been expensing?
must we have been expensing?
must you have been expensing?
must they have been expensing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not expense?
must you not expense?
must she not expense?
must we not expense?
must you not expense?
must they not expense? 	must I not be expensing?
must you not be expensing?
must she not be expensing?
must we not be expensing?
must you not be expensing?
must they not be expensing? 	must I not have expensed?
must you not have expensed?
must she not have expensed?
must we not have expensed?
must you not have expensed?
must they not have expensed? 	must I not have been expensing?
must you not have been expensing?
must she not have been expensing?
must we not have been expensing?
must you not have been expensing?
must they not have been expensing?