achimbabeul meokgo naseo yangchihaeyo.

Yes, 아침밥 means breakfast.

Literally:

• 아침 = morning
• 밥 = rice / meal / cooked rice

In many everyday contexts, 밥 can mean a meal, not just rice. So 아침밥 is literally morning meal, which is just breakfast.

In conversation, Koreans also often say:

• 아침을 먹다 = to eat breakfast
• 아침밥을 먹다 = to eat breakfast

Both are natural.

을 is the object particle. It marks 아침밥 as the thing being eaten.

So:

• 아침밥을 = breakfast + object marker
• 먹고 나서 = after eating
• 양치해요 = brush my teeth / brush your teeth / brush teeth

You use 을/를 with direct objects:

• 밥을 먹어요 = I eat a meal / rice
• 물을 마셔요 = I drink water
• 책을 읽어요 = I read a book

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

먹고 나서 means after eating.

It is built from:

• 먹다 = to eat
• 먹고 = eat and...
• 나서 = after doing so / once that is done

Together, V-고 나서 means:

• after doing V
• once V is finished

So:

• 먹고 나서 양치해요 = I brush my teeth after eating

This grammar emphasizes that one action happens after the first one is completed.

More examples:

• 숙제하고 나서 놀아요. = I play after doing homework.
• 집에 가고 나서 쉬어요. = I rest after going home.

Good question. Both can connect actions, but they are not exactly the same.

• 먹고 양치해요 = eat and brush my teeth
• 먹고 나서 양치해요 = brush my teeth after eating

-고 simply links actions in sequence and can feel more neutral: do A and then do B.

-고 나서 more clearly emphasizes:

• first A is completed
• then B happens after that

So in this sentence, 먹고 나서 makes the sequence especially clear: after breakfast, then brushing teeth.

양치해요 means brush one’s teeth.

It comes from:

• 양치하다 = to brush one’s teeth

So:

• 양치해요 = brush(es) teeth / brush your teeth / I brush my teeth

A very close equivalent is:

• 이를 닦아요

Both are common, but they feel slightly different:

• 양치하다 = the act of dental brushing / brushing teeth
• 이를 닦다 = literally clean the teeth

In daily conversation, both are natural.

In Korean, 양치하다 already means to brush one’s teeth, so the object is usually unnecessary.

That is why:

• 양치해요 is completely natural

You would not normally say:

• 이를 양치해요 ✗

If you want to mention teeth directly, you would use a different verb:

• 이를 닦아요 = I brush my teeth

So:

• 양치해요 = natural
• 이를 닦아요 = natural
• 이를 양치해요 = unnatural

Korean very often omits the subject when it is obvious from context.

So instead of saying:

• 저는 아침밥을 먹고 나서 양치해요

Korean often just says:

• 아침밥을 먹고 나서 양치해요

The subject could be understood as:

• I
• we
• he/she
• you

depending on the situation.

In English, subjects are usually required. In Korean, they are often left out if they are already understood.

Because Korean is generally a subject-object-verb language, and the main verb usually comes at the end.

In English:

• I eat breakfast and then brush my teeth.

In Korean:

• (저는) 아침밥을 먹고 나서 양치해요.
• literally: (I) breakfast eat-after brushing-do

This is one of the biggest word-order differences between English and Korean:

• English usually puts the verb earlier
• Korean usually saves the main verb for the end

양치해요 is in the -요 polite style, which is polite and very common in everyday conversation.

From the dictionary form:

• 양치하다 = to brush one’s teeth

Polite present form:

• 양치해요

This style is appropriate for:

• speaking politely
• everyday conversation
• talking to people you do not speak casually with

Other possible styles:

• 양치합니다 = more formal
• 양치해 = casual/informal

So this sentence sounds like normal polite spoken Korean.

Yes. 먹고 나서 양치해요 is in the present polite form, but in Korean the present tense often covers both:

• a current/general fact
• a habit
• a routine

So this sentence can mean:

• I brush my teeth after breakfast
• I usually brush my teeth after eating breakfast
• After breakfast, I brush my teeth

Without extra context, it can sound like a general routine.

If you wanted to make the past explicit:

• 아침밥을 먹고 나서 양치했어요. = I brushed my teeth after eating breakfast.

Yes, in casual spoken Korean, particles are often omitted when the meaning is still clear.

So both can be heard:

• 아침밥을 먹고 나서 양치해요
• 아침밥 먹고 나서 양치해요

The version with 을 is more complete and textbook-like. The version without it is very common in everyday speech.

For learners, it is usually best to learn the full form first:

• 아침밥을 먹고 나서 양치해요

Yes. Because the subject is omitted, 양치해요 by itself does not specify who the subject is.

Depending on context, it could mean:

• I brush my teeth
• you brush your teeth
• he/she brushes their teeth
• we brush our teeth

In this sentence, English translations often choose I because that is the most natural assumption in many learning examples, but Korean itself does not force that interpretation unless context makes it clear.

Yes. Some common alternatives are:

• 아침밥을 먹은 후에 양치해요.
• 아침 먹고 나서 양치해요.
• 아침 먹은 다음에 양치해요.
• 아침밥 먹고 양치해요.

These are all similar, but with small differences:

• 먹고 나서 = after eating; emphasizes completion
• 먹은 후에 = after eating; a bit more written/formal
• 먹은 다음에 = after that / next
• 먹고 = and then eat; simpler connection

They are all useful patterns to recognize.