ppallaega kkeutnamyeon syeocheureul jeobeoseo seorabe neoheoyo.

Because 끝나다 is an intransitive verb, meaning to finish / to be finished. Intransitive verbs do not take a direct object, so 빨래 is marked with 가, not 를.

• 빨래가 끝나다 = the laundry finishes / the laundry is done
• 빨래를 끝내다 = to finish the laundry

So:

• 빨래가 끝나면 = when the laundry is done
• 빨래를 끝내면 = when I finish the laundry

The original sentence focuses on the laundry being finished, not on the speaker actively finishing it.

-면 means if or when, depending on context.

In this sentence, 끝나면 most naturally means when it finishes or once it is done.

Structure:

• 끝나다 = to finish
• 끝나면 = if/when it finishes

Here it introduces a condition or time point:

• 빨래가 끝나면 = when the laundry is done

In everyday Korean, -면 is very common for situations like:

• 집에 가면 연락해요. = When I get home, I’ll contact you.
• 비가 오면 안 가요. = If it rains, I won’t go.

So in this sentence, it is best understood as a natural sequence: once the laundry is done...

Not necessarily. In Korean, nouns often do not show singular/plural unless it really matters.

So 셔츠를 접어서 서랍에 넣어요 can mean:

• I fold the shirt and put it in the drawer
• I fold the shirts and put them in the drawer

The exact number depends on context.

English usually forces you to choose between shirt and shirts, but Korean often leaves that unspecified. If the speaker wanted to clearly emphasize plural, they might say something like 셔츠들을, but that is often unnecessary and can sound more marked than natural in ordinary conversation.

접어서 comes from 접다 (to fold) plus -아서/어서, which often connects actions.

So:

• 접다 = to fold
• 접어서 = fold and... / after folding...

In this sentence, it links two actions in sequence:

1. fold the shirt(s)
2. put them in the drawer

So 셔츠를 접어서 서랍에 넣어요 means something like:

• I fold the shirt(s) and put them in the drawer
• I fold the shirt(s), then put them in the drawer

Here -어서 shows that the first action leads into the next one naturally.

Not always. -아서/어서 can express several related ideas, depending on context:

• sequence: do A and then do B
• method/means: do B by doing A
• reason/cause: because A, B

In this sentence, it is mainly sequence:

• 셔츠를 접어서 서랍에 넣어요 = I fold the shirt(s) and put them in the drawer

But there is also a slight sense that folding is part of the method before storing them.

So a natural interpretation is:

• After folding the shirts, I put them in the drawer
• I fold the shirts and put them in the drawer

에 is used here to mark the destination of movement.

• 서랍 = drawer
• 서랍에 = into/in the drawer as the place something goes
• 넣다 = to put in, insert

So:

• 서랍에 넣어요 = put it in the drawer

With verbs of placement or movement, 에 often marks where something is placed:

• 가방에 넣어요 = put it in the bag
• 상자에 넣어요 = put it in the box

If you used 에서, it would sound wrong here, because 에서 usually marks the place where an action occurs, not the destination something is put into.

They are related, but not the same.

• 넣어요 = put in / place inside
• 놓아요 = put / place / set down

Since a drawer is an enclosed space, 넣어요 is the natural choice.

Compare:

• 책상 위에 놓아요. = I put it on the desk.
• 서랍에 넣어요. = I put it in the drawer.

So 넣다 emphasizes putting something inside something else.

Korean often leaves out the subject when it is obvious from context.

So in 빨래가 끝나면 셔츠를 접어서 서랍에 넣어요, the subject of 접어서 서랍에 넣어요 is understood from the situation, usually:

• I
• we
• or a general you/one, depending on context

In many textbook or everyday situations, the most natural interpretation is:

• When the laundry is done, I fold the shirts and put them in the drawer.

This omission is very normal in Korean and does not make the sentence incomplete.

Because Korean present tense forms often cover:

• present actions
• habitual actions
• near future actions
• general routines

So 넣어요 can mean:

• I put them in the drawer
• I’ll put them in the drawer
• I usually put them in the drawer

In this sentence, it most likely describes a routine/habit or a normal next action:

• When the laundry is done, I fold the shirts and put them in the drawer.

Korean does not always need a separate future form where English might use will.

Yes, and it would be very similar, but the nuance is a little different.

• 빨래가 끝나면 = when the laundry is done / once the laundry finishes
• 빨래가 끝난 후에 = after the laundry is finished

Both work, but:

• -면 sounds very natural for a condition or time trigger
• 후에 sounds a bit more explicitly like after

So both are possible:

• 빨래가 끝나면 셔츠를 접어서 서랍에 넣어요.
• 빨래가 끝난 후에 셔츠를 접어서 서랍에 넣어요.

The original sentence is a very common, natural way to express this kind of sequence.

Yes, to some extent. Korean word order is flexible, especially with time/condition clauses.

You can keep the same meaning with:

• 셔츠를 접어서 서랍에 넣어요, 빨래가 끝나면.

But this sounds less neutral in many situations. The original order is more natural because Korean often puts the background condition first:

• 빨래가 끝나면 = when the laundry is done
• 셔츠를 접어서 서랍에 넣어요 = fold the shirt(s) and put them in the drawer

So the original sentence flows naturally as:

1. condition/time
2. main action

That pattern is very common in Korean.

It can cover a few related ideas depending on context.

빨래 commonly refers to:

• laundry
• washing clothes
• the load of laundry

So 빨래가 끝나면 can be understood as:

• when the laundry is done
• when the washing is finished
• when the wash cycle ends

In everyday speech, Korean often uses 빨래 broadly, and the exact interpretation comes from the situation.

A natural pronunciation is close to 끈나면.

Why?

• The 받침 ㅌ in 끝 interacts with the following ㄴ in 나면
• In natural pronunciation, this becomes similar to ㄴㄴ

So:

• 끝나면 is written that way
• but commonly sounds like 끈나면

This kind of sound change is very common in Korean and can make spoken Korean sound different from what learners expect from the spelling.