시도는

attempt

→ 시도
phrase Rare #18,629
attempt 는 is a topic marker; here it can add contrast or emphasis, as in “I did try.”
KO: 시도는 해 봤어요.
EN: I did give it a try.

시도는 좋았어

It was a good attempt.

— 폴링 다운 (1993)

시도는 했죠

I did try.

— 그린랜드 2: 마이그레이션 (2026)

근데 한 번 사실 시도는 해 봤어요

But I did actually give it a try once.

— Virgin Stripped Bare by Her Bachelors (2000)