English verb conjugation
COULD EXPENSE

Regular verb: expense - expensed - expensed

Affirmation

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

Negation

Simple form	V-ing form
I could not expense you could not expense he could not expense we could not expense you could not expense they could not expense	I could not be expensing you could not be expensing he could not be expensing we could not be expensing you could not be expensing they could not be expensing
Perfect	V-ing perfect
I could not have expensed you could not have expensed he could not have expensed we could not have expensed you could not have expensed they could not have expensed	I could not have been expensing you could not have been expensing he could not have been expensing we could not have been expensing you could not have been expensing they could not have been expensing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not expense? could you not expense? could he not expense? could we not expense? could you not expense? could they not expense?	could I not be expensing? could you not be expensing? could he not be expensing? could we not be expensing? could you not be expensing? could they not be expensing?
Perfect	V-ing perfect
could I not have expensed? could you not have expensed? could he not have expensed? could we not have expensed? could you not have expensed? could they not have expensed?	could I not have been expensing? could you not have been expensing? could he not have been expensing? could we not have been expensing? could you not have been expensing? could they not have been expensing?