could arbitrage
Regular verb: arbitrage - arbitraged- arbitraged

Affirmation 	
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I could arbitrage
you could arbitrage
she could arbitrage
we could arbitrage
you could arbitrage
they could arbitrage 	I could be arbitraging
you could be arbitraging
she could be arbitraging
we could be arbitraging
you could be arbitraging
they could be arbitraging	I could have arbitraged
you could have arbitraged
she could have arbitraged
we could have arbitraged
you could have arbitraged
they could have arbitraged	I could have been arbitraging
you could have been arbitraging
she could have been arbitraging
we could have been arbitraging
you could have been arbitraging
they could have been arbitraging	

Negation 	
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I couldn't arbitrage
you couldn't arbitrage
she couldn't arbitrage
we couldn't arbitrage
you couldn't arbitrage
they couldn't arbitrage 	I couldn't be arbitraging
you couldn't be arbitraging
she couldn't be arbitraging
we couldn't be arbitraging
you couldn't be arbitraging
they couldn't be arbitraging	I couldn't have arbitraged
you couldn't have arbitraged
she couldn't have arbitraged
we couldn't have arbitraged
you couldn't have arbitraged
they couldn't have arbitraged	I couldn't have been arbitraging
you couldn't have been arbitraging
she couldn't have been arbitraging
we couldn't have been arbitraging
you couldn't have been arbitraging
they couldn't have been arbitraging	

Interrogative form 	
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could I arbitrage?
could you arbitrage?
could she arbitrage?
could we arbitrage?
could you arbitrage?
could they arbitrage? 	could I be arbitraging?
could you be arbitraging?
could she be arbitraging?
could we be arbitraging?
could you be arbitraging?
could they be arbitraging? 	could I have arbitraged?
could you have arbitraged?
could she have arbitraged?
could we have arbitraged?
could you have arbitraged?
could they have arbitraged? 	could I have been arbitraging?
could you have been arbitraging?
could she have been arbitraging?
could we have been arbitraging?
could you have been arbitraging?
could they have been arbitraging? 	

Interro-negative form 	
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couldn't I arbitrage?
couldn't you arbitrage?
couldn't she arbitrage?
couldn't we arbitrage?
couldn't you arbitrage?
couldn't they arbitrage? 	couldn't I be arbitraging?
couldn't you be arbitraging?
couldn't she be arbitraging?
couldn't we be arbitraging?
couldn't you be arbitraging?
couldn't they be arbitraging? 	couldn't I have arbitraged?
couldn't you have arbitraged?
couldn't she have arbitraged?
couldn't we have arbitraged?
couldn't you have arbitraged?
couldn't they have arbitraged? 	couldn't I have been arbitraging?
couldn't you have been arbitraging?
couldn't she have been arbitraging?
couldn't we have been arbitraging?
couldn't you have been arbitraging?
couldn't they have been arbitraging?