English verb conjugation
COULD EXPENSE

Regular verb: expense - expensed - expensed

Affirmation

Simple form	V-ing form
I could expense you could expense she could expense we could expense you could expense they could expense	I could be expensing you could be expensing she 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 she 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 she 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 couldn't expense you couldn't expense she couldn't expense we couldn't expense you couldn't expense they couldn't expense	I couldn't be expensing you couldn't be expensing she couldn't be expensing we couldn't be expensing you couldn't be expensing they couldn't be expensing
Perfect	V-ing perfect
I couldn't have expensed you couldn't have expensed she couldn't have expensed we couldn't have expensed you couldn't have expensed they couldn't have expensed	I couldn't have been expensing you couldn't have been expensing she couldn't have been expensing we couldn't have been expensing you couldn't have been expensing they couldn't have been expensing

Interrogative form

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