English verb conjugation
COULD SHORT

Regular verb: short - shorted - shorted

Affirmation

Simple form	V-ing form
I could short you could short he could short we could short you could short they could short	I could be shorting you could be shorting he could be shorting we could be shorting you could be shorting they could be shorting
Perfect	V-ing perfect
I could have shorted you could have shorted he could have shorted we could have shorted you could have shorted they could have shorted	I could have been shorting you could have been shorting he could have been shorting we could have been shorting you could have been shorting they could have been shorting

Negation

Simple form	V-ing form
I couldn't short you couldn't short he couldn't short we couldn't short you couldn't short they couldn't short	I couldn't be shorting you couldn't be shorting he couldn't be shorting we couldn't be shorting you couldn't be shorting they couldn't be shorting
Perfect	V-ing perfect
I couldn't have shorted you couldn't have shorted he couldn't have shorted we couldn't have shorted you couldn't have shorted they couldn't have shorted	I couldn't have been shorting you couldn't have been shorting he couldn't have been shorting we couldn't have been shorting you couldn't have been shorting they couldn't have been shorting

Interrogative form

Simple form	V-ing form
could I short? could you short? could he short? could we short? could you short? could they short?	could I be shorting? could you be shorting? could he be shorting? could we be shorting? could you be shorting? could they be shorting?
Perfect	V-ing perfect
could I have shorted? could you have shorted? could he have shorted? could we have shorted? could you have shorted? could they have shorted?	could I have been shorting? could you have been shorting? could he have been shorting? could we have been shorting? could you have been shorting? could they have been shorting?

Interro-negative form

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