English verb conjugation
COULD SHORT-CHANGE

Regular verb: short-change - short-changed - short-changed

Affirmation

Simple form	V-ing form
I could short-change you could short-change he could short-change we could short-change you could short-change they could short-change	I could be short-changing you could be short-changing he could be short-changing we could be short-changing you could be short-changing they could be short-changing
Perfect	V-ing perfect
I could have short-changed you could have short-changed he could have short-changed we could have short-changed you could have short-changed they could have short-changed	I could have been short-changing you could have been short-changing he could have been short-changing we could have been short-changing you could have been short-changing they could have been short-changing

Negation

Simple form	V-ing form
I couldn't short-change you couldn't short-change he couldn't short-change we couldn't short-change you couldn't short-change they couldn't short-change	I couldn't be short-changing you couldn't be short-changing he couldn't be short-changing we couldn't be short-changing you couldn't be short-changing they couldn't be short-changing
Perfect	V-ing perfect
I couldn't have short-changed you couldn't have short-changed he couldn't have short-changed we couldn't have short-changed you couldn't have short-changed they couldn't have short-changed	I couldn't have been short-changing you couldn't have been short-changing he couldn't have been short-changing we couldn't have been short-changing you couldn't have been short-changing they couldn't have been short-changing

Interrogative form

Simple form	V-ing form
could I short-change? could you short-change? could he short-change? could we short-change? could you short-change? could they short-change?	could I be short-changing? could you be short-changing? could he be short-changing? could we be short-changing? could you be short-changing? could they be short-changing?
Perfect	V-ing perfect
could I have short-changed? could you have short-changed? could he have short-changed? could we have short-changed? could you have short-changed? could they have short-changed?	could I have been short-changing? could you have been short-changing? could he have been short-changing? could we have been short-changing? could you have been short-changing? could they have been short-changing?

Interro-negative form

Simple form	V-ing form
couldn't I short-change? couldn't you short-change? couldn't he short-change? couldn't we short-change? couldn't you short-change? couldn't they short-change?	couldn't I be short-changing? couldn't you be short-changing? couldn't he be short-changing? couldn't we be short-changing? couldn't you be short-changing? couldn't they be short-changing?
Perfect	V-ing perfect
couldn't I have short-changed? couldn't you have short-changed? couldn't he have short-changed? couldn't we have short-changed? couldn't you have short-changed? couldn't they have short-changed?	couldn't I have been short-changing? couldn't you have been short-changing? couldn't he have been short-changing? couldn't we have been short-changing? couldn't you have been short-changing? couldn't they have been short-changing?