yeonchulgaga mudae dwieseo daeboneul ilgeosseo.

연출가 means a person who directs or stages a performance, so director is a good translation.

However, it is not always identical to every English use of director:

• 연출가 is often used for someone directing a play, stage production, TV program, or performance.
• 감독 is another common word for director, especially for film, sports, or broader directing roles.

So in this sentence, 연출가 gives the sense of a staging/performance director.

The particle 가 marks 연출가 as the subject of the sentence.

So:

• 연출가가 = the director
  • subject marker

A learner often compares 가/이 with 은/는:

• 가/이 is a plain subject marker and often feels more neutral or specific
• 은/는 marks the topic and can add contrast or emphasis

So 연출가는 무대 뒤에서 대본을 읽었어 would also be possible, but it would shift the nuance a bit toward as for the director...

무대 뒤에서 means behind the stage or more naturally backstage.

Breakdown:

• 무대 = stage
• 뒤 = back, behind
• 에서 = at, in, from, at the place where an action happens

에서 is used because reading happens at that location.

Compare:

• 학교에서 공부했어 = studied at school
• 집에서 잤어 = slept at home
• 무대 뒤에서 읽었어 = read backstage

So 에서 often marks the place where an action takes place.

을 marks the direct object, the thing being read.

So:

• 대본 = script
• 대본을 = the script as the object of the verb

Since 읽다 means to read, the thing being read takes 을/를:

• 책을 읽다 = read a book
• 편지를 읽다 = read a letter
• 대본을 읽다 = read a script

Because 대본 ends in a consonant, it takes 을 rather than 를.

읽었어 is the past tense informal casual form of 읽다 (to read).

Breakdown:

• 읽다 = to read
• 읽었- = read / did read (past tense stem)
• -어 = casual sentence ending

So 읽었어 means read or was reading depending on context, but most basically it is read in the past.

This is a casual style used with:

• friends
• younger people
• people you are close to
• informal narration

A more polite version would be:

• 읽었어요

A formal style would be:

• 읽었습니다

It is commonly pronounced like 일거써.

That is because Korean pronunciation changes when sounds meet:

• 읽다 is pronounced roughly 익따
• 읽어 becomes 일거
• 읽었어 becomes 일거써

So even though it is spelled 읽었어, the spoken form sounds quite different. This is very normal in Korean verbs with final consonant clusters.

The basic Korean word order here is:

subject + place + object + verb

So:

• 연출가가 = subject
• 무대 뒤에서 = place
• 대본을 = object
• 읽었어 = verb

Korean usually puts the verb at the end of the sentence.

That is one of the biggest differences from English:

• English: The director read the script backstage.
• Korean: The director backstage the script read.

Of course, that is a literal ordering, not natural English.

Yes, Korean word order is more flexible than English, as long as the particles make the roles clear.

For example, these are all possible:

• 연출가가 무대 뒤에서 대본을 읽었어.
• 무대 뒤에서 연출가가 대본을 읽었어.
• 대본을 연출가가 무대 뒤에서 읽었어.

They all mean roughly the same thing, but the emphasis can change depending on what comes earlier.

The verb usually stays at the end, though.

It can mean both, depending on context.

Literally:

• behind the stage

Naturally or idiomatically:

• backstage

In many real situations, an English speaker would translate it as backstage, because that sounds more natural than behind the stage.

Yes. Korean often omits subjects when they are clear from context.

So in conversation, someone might simply say:

• 무대 뒤에서 대본을 읽었어.

This could still mean:

• The director read the script backstage if the listener already knows who is being talked about.

Korean drops subjects and objects much more freely than English does.

A polite version would be:

연출가가 무대 뒤에서 대본을 읽었어요.

The only change is:

• 읽었어 → 읽었어요

If you wanted a more formal written or speech style, you could say:

연출가가 무대 뒤에서 대본을 읽었습니다.

So the levels are:

• 읽었어 = casual
• 읽었어요 = polite
• 읽었습니다 = formal

Yes.

• 읽었어 = read / read it / completed the action in the past
• 읽고 있었어 = was reading / emphasizes the action was in progress

So:

• 연출가가 무대 뒤에서 대본을 읽었어. = The director read the script backstage.
• 연출가가 무대 뒤에서 대본을 읽고 있었어. = The director was reading the script backstage.

English sometimes uses simple past where Korean also uses simple past, but if you want to stress ongoing action in the past, -고 있었어 is better.