I could horse-trade you could horse-trade he could horse-trade we could horse-trade you could horse-trade they could horse-trade
V-ing form
I could be horse-trading you could be horse-trading he could be horse-trading we could be horse-trading you could be horse-trading they could be horse-trading
Perfect
I could have horse-traded you could have horse-traded he could have horse-traded we could have horse-traded you could have horse-traded they could have horse-traded
V-ing perfect
I could have been horse-trading you could have been horse-trading he could have been horse-trading we could have been horse-trading you could have been horse-trading they could have been horse-trading
Negation
Simple form
I couldn't horse-trade you couldn't horse-trade he couldn't horse-trade we couldn't horse-trade you couldn't horse-trade they couldn't horse-trade
V-ing form
I couldn't be horse-trading you couldn't be horse-trading he couldn't be horse-trading we couldn't be horse-trading you couldn't be horse-trading they couldn't be horse-trading
Perfect
I couldn't have horse-traded you couldn't have horse-traded he couldn't have horse-traded we couldn't have horse-traded you couldn't have horse-traded they couldn't have horse-traded
V-ing perfect
I couldn't have been horse-trading you couldn't have been horse-trading he couldn't have been horse-trading we couldn't have been horse-trading you couldn't have been horse-trading they couldn't have been horse-trading
Interrogative form
Simple form
could I horse-trade? could you horse-trade? could he horse-trade? could we horse-trade? could you horse-trade? could they horse-trade?
V-ing form
could I be horse-trading? could you be horse-trading? could he be horse-trading? could we be horse-trading? could you be horse-trading? could they be horse-trading?
Perfect
could I have horse-traded? could you have horse-traded? could he have horse-traded? could we have horse-traded? could you have horse-traded? could they have horse-traded?
V-ing perfect
could I have been horse-trading? could you have been horse-trading? could he have been horse-trading? could we have been horse-trading? could you have been horse-trading? could they have been horse-trading?
Interro-negative form
Simple form
couldn't I horse-trade? couldn't you horse-trade? couldn't he horse-trade? couldn't we horse-trade? couldn't you horse-trade? couldn't they horse-trade?
V-ing form
couldn't I be horse-trading? couldn't you be horse-trading? couldn't he be horse-trading? couldn't we be horse-trading? couldn't you be horse-trading? couldn't they be horse-trading?
Perfect
couldn't I have horse-traded? couldn't you have horse-traded? couldn't he have horse-traded? couldn't we have horse-traded? couldn't you have horse-traded? couldn't they have horse-traded?
V-ing perfect
couldn't I have been horse-trading? couldn't you have been horse-trading? couldn't he have been horse-trading? couldn't we have been horse-trading? couldn't you have been horse-trading? couldn't they have been horse-trading?