Hi there, should I use "have been able to do" or "could do" in the following context?
Liverpool have just beaten Chelsea by 10-0, which is quite unbelievable. They have done something that no other team have been able to do/could do.
I recommend using "has been able to do," which I strongly prefer to "could do" there. That no other team has been able to do it is evidenced by the fact that no other team did it, but that doesn't mean they couldn't do it, then or now.
Please note that "have" is incorrect in your example. "No other team" is singular; therefore you need the singular form of the verb: "has."
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