Important Question about Resume After Internship

I just completed an internship at a BB firm (received an offer) and hope to apply for a job with other BBs/PE shops.

Unfortunately, I didn't learn much this summer. As I think is typical of a summer analyst, my primary responsibilities were editing pitchbooks, making charts, and revising OMs.

I go to a liberal arts school and major in the humanities, so I didn't have much modeling experience prior to the internship, and didn't really get any during, either.

I'm creating the entry for my internship on my resume and am not sure what to put. I'm looking at examples from a resume book I have, and almost everyone invariably lists several different types of models that they have had experience building..."merger, lbo, precedent transaction, premiums paid, etc."

Frankly, I don't know how to do any of these yet, and I am afraid that if I do not list them I will be at a disadvantage.

Yet, if I do put them down, I can assume that I will be expected to be able to answer questions on them during an interview.

Any thoughts on what I should do? Thanks!