
James M. answered 03/23/19
Berkeley grad with a doctorate
Yes, this is a tricky one!
It's tricky because "potential" is in the place where we normally find the subject, and potential is singular, so "comes" may sound right. However, the structure of this sentence is called "subject-dependent inversion." That means that the dependent clause precedes the subject.
If we read the sentence with the subject at the beginning, we'll intuitively hear the correct verb: "Difficulties come with tremendous potential." Difficulties is plural, so "come" is the correct verb.
Hope this helps!