jeoneun dubureul meogeul ttae ganjange sikchoreul jogeum neoheoyo.

저는 is 저 + 는.

• 저 = I (humble/polite)
• 는 = topic particle

So 저는 means something like as for me or I, personally.

In Korean, 는 often introduces the topic rather than simply marking the grammatical subject. It can also give a slight contrastive feeling, like for me or when I do it.

You could also hear 제가 in other situations, but 저는 is very natural when talking about a personal habit or preference.

를 is the object particle, so 두부를 marks tofu as the thing being eaten.

• 두부 = tofu
• 두부를 = tofu (as the object)

In casual speech, Koreans often drop 를/을 if the meaning is clear, so 두부 먹을 때 is also possible in conversation. But in a standard textbook-style sentence, keeping 를 is perfectly normal and helpful.

먹을 때 means when (I) eat or when eating.

It breaks down like this:

• 먹다 = to eat
• 먹을 = the modifier form here
• 때 = time / moment / when

So 먹을 때 literally means the time of eating or the time when [someone] eats.

In this sentence, it connects the action of eating tofu with the action of adding vinegar to soy sauce.

This is a very common learner question.

With 때, Korean usually uses:

• verb stem + ㄹ/을 때 for when doing
• past form + 았/었/였을 때 for when did / when it happened

So:

• 먹을 때 = when eating / when I eat
• 먹었을 때 = when I ate / when I had eaten

Although 먹는 is also a verb modifier form, 먹는 때 is not the normal expression here. With 때, the standard pattern is 먹을 때.

Because 간장 is the place/container/substance that receives the vinegar.

• 식초를 넣다 = to add vinegar
• 간장에 넣다 = to put it into soy sauce

Here:

• 식초를 = the thing being added
• 간장에 = where it is being added to

So 에 marks the target or destination of the action, not the direct object.

Yes, 에 often marks location or time, but it also marks a destination or target.

In this sentence, 간장에 means:

• into soy sauce
• in soy sauce
• to soy sauce

This is similar to how Korean uses 에 넣다:

• 물에 설탕을 넣어요 = I add sugar to water.
• 커피에 우유를 넣어요 = I add milk to coffee.

So here 에 shows what the vinegar is being added to.

조금 means a little or a small amount.

In 식초를 조금 넣어요, 조금 describes the amount of vinegar being added. Korean adverbs like this often come before the verb:

• 식초를 조금 넣어요 = I add a little vinegar.

You can think of it as modifying the whole action: add vinegar a little.

This is the most natural placement.

Sometimes yes, but not every position sounds equally natural.

Most natural:

• 식초를 조금 넣어요

Also possible in some contexts:

• 조금 식초를 넣어요

But that version is less neutral and can sound more marked depending on context.

If you want to be very natural as a learner, 식초를 조금 넣어요 is the safest pattern.

넣어요 comes from 넣다, which means to put in, to insert, or to add.

In food-related contexts, it often means add:

• 소금을 넣어요 = add salt
• 고추장을 넣어요 = add gochujang
• 식초를 넣어요 = add vinegar

So in this sentence, 넣어요 is best understood as I add rather than just the very literal I put in.

In Korean, the present tense often covers:

• things happening now
• general truths
• repeated actions
• habits

So 넣어요 can mean:

• I add
• I usually add
• I tend to add

This is very normal. Korean does not need a special tense just to show habit in many cases. Context tells you it is a habitual action.

Yes, very likely.

Because the sentence is in plain present polite style and has no time word like yesterday or today, it usually sounds like a repeated personal habit or preference:

• When I eat tofu, I add a little vinegar to soy sauce.

If the speaker wanted to talk about one specific occasion, they would usually add more context.

Yes. Korean often drops subjects when they are obvious.

So in conversation, you might hear:

• 두부를 먹을 때 간장에 식초를 조금 넣어요.

That still sounds natural if it is already clear who is speaking.

Korean often omits:

• the subject
• the object
• other repeated information

as long as the listener can understand it from context.

Korean word order is fairly flexible because particles show each word’s role.

The most neutral order here is:

• 저는 두부를 먹을 때 간장에 식초를 조금 넣어요.

But some rearrangement is possible, for example:

• 저는 두부를 먹을 때 식초를 간장에 조금 넣어요.

That is still understandable, since:

• 간장에 shows the target
• 식초를 shows the thing added

Still, the original sentence sounds smoother and more natural for everyday use.

Yes, that is completely okay, because they belong to different parts of the sentence.

• 두부를 먹을 때 = when eating tofu
• 식초를 조금 넣어요 = I add a little vinegar

So 두부를 is the object of 먹을 때, and 식초를 is the object of 넣어요.

There is no problem because each object belongs to a different verb.

Yes, that is a very helpful literal understanding.

Structure:

• 간장에 = into/in soy sauce
• 식초를 = vinegar
• 조금 = a little
• 넣어요 = put in / add

So literally, it is close to:

• I put a little vinegar into soy sauce.

In natural English, I add a little vinegar to soy sauce is usually the best translation.