jigeumkkaji chwisopyoreul mos chajasseo.

지금까지 means until now, up to now, or so far.

In this sentence, it shows that the speaker has been trying or looking from some point in the past up to the present, and the result is still negative.

So the feeling is:

• So far, I haven’t found...
• Up until now, I still haven’t found...

It gives a stronger sense of elapsed time than just saying 지금 (now).

취소표 is a very common Korean word meaning a canceled ticket or ticket made available because someone canceled.

It is often used for:

• train tickets
• concert tickets
• flight or bus tickets
• reservation-based events

So it usually refers not just to any canceled ticket in the abstract, but to a ticket that became available after someone canceled—the kind of ticket someone else hopes to grab.

The particle 를 marks 취소표 as the direct object of the verb 찾다 (to find / look for).

So:

• 취소표를 찾다 = to find/look for a canceled ticket

In Korean, the thing being searched for or found is often marked as the object.

You may also see 취소표를 못 구했어 in real life, which would mean I couldn’t get a canceled ticket. But with 찾았어, the focus is on finding one.

This is a very important distinction.

• 안 찾았어 = I didn’t look for it / I didn’t find it depending on context, but often implies non-action or choice
• 못 찾았어 = I couldn’t find it

Here, 못 expresses inability or failure despite trying, which fits naturally with this sentence.

So:

• 지금까지 취소표를 안 찾았어 would sound odd in many contexts, because it can suggest I haven’t looked for a canceled ticket
• 지금까지 취소표를 못 찾았어 clearly means I haven’t been able to find one

It can feel like either in English, depending on context.

Literally:

• 찾았어 = found
• 못 찾았어 = couldn’t find / didn’t manage to find

But because the sentence includes 지금까지, the most natural English sense is:

• I haven’t found a canceled ticket so far
• I still haven’t been able to find a canceled ticket

So grammatically it uses a past form in Korean, but in English the best translation is often present perfect because of the up-to-now meaning.

Korean often uses a past-form verb where English would use the present perfect.

So:

• 찾았어 is past in form
• but with 지금까지, the whole sentence means something like up to the present, the result is that I haven’t found one

This is very natural in Korean. You do not need a special present perfect form like English have found / haven’t found.

That is why:

• 지금까지 취소표를 못 찾았어 naturally means
• I haven’t been able to find a canceled ticket so far

-았어 / -었어 is the informal, casual polite-low ending used with people you are close to, such as:

• friends
• siblings
• someone younger
• people you speak casually with

So 못 찾았어 is casual speech.

More polite versions would be:

• 지금까지 취소표를 못 찾았어요.
• 지금까지 취소표를 찾지 못했어요. (a bit more formal or written-sounding)

So the meaning stays the same, but the speech level changes.

It can cover both ideas depending on context.

With 못 찾았어, the whole expression usually means:

• I couldn’t find
• or I haven’t been able to find

This implies that the speaker has likely been looking for one, even though the verb itself is find.

So in real English, depending on the situation, you might interpret it as:

• I still haven’t found a canceled ticket
• I still haven’t been able to find one
• I’ve been looking, but I can’t find a canceled ticket

Yes, very often it does.

Because of 지금까지 (so far / up to now) plus 못 찾았어 (haven’t been able to find), the sentence often suggests:

• the speaker has been checking repeatedly
• the ticket is hard to get
• the effort has continued over time

So the nuance is usually not just a simple one-time failure. It often sounds more like:

• I’ve been trying, but I still haven’t found one.

Yes. That is completely correct.

Compare:

• 취소표를 못 찾았어

  • more conversational
  • very common in speech

• 취소표를 찾지 못했어

  • same meaning
  • slightly more formal or more neutral in tone
  • often seen in writing or careful speech

Both mean essentially:

• I haven’t been able to find a canceled ticket so far

Yes, and it is very common.

For example:

• 아직 취소표를 못 찾았어. = I still haven’t found a canceled ticket.
• 지금까지 취소표를 못 찾았어. = I haven’t found a canceled ticket so far / up to now.

Difference:

• 아직 focuses on still not yet
• 지금까지 focuses on the period up to now

They are similar, and sometimes you can even use both:

• 아직도 지금까지 취소표를 못 찾았어 would be possible, though usually more than you need in everyday speech

Yes, it is natural and conversational.

A native speaker would understand it immediately as something like:

• I haven’t found any canceled tickets so far
• I still haven’t been able to get one

Depending on context, other natural alternatives include:

• 아직 취소표를 못 찾았어.
• 지금까지 취소표를 못 구했어.
• 아직 취소표가 안 나왔어.
  This last one shifts the meaning slightly to No canceled tickets have come up yet.

So your original sentence is perfectly natural, especially in casual conversation.