geu yeongsangeun eorin jokawa gati bol manhaeseo imohantedo chucheonhaesseo.

은 is the topic particle. It marks 그 영상 as the thing the speaker is talking about.

So 그 영상은 means something like:

• As for that video, ...
• That video, ...

It does not just mark the subject in a neutral way; it often gives a slight topic/contrast feeling. In this sentence, the speaker is setting up that video as the topic and then saying what they did with it.

A more literal breakdown is:

• 그 영상 = that video / that clip
• 은 = topic marker

어리다 is the dictionary form meaning to be young.
To put it directly before a noun, Korean uses the adnominal form.

For descriptive verbs like 어리다, the form before a noun is:

• 어리다 → 어린

So:

• 어린 조카 = a young niece/nephew

This is similar to how Korean adjectives change form before nouns:

• 예쁘다 → 예쁜 꽃
• 작다 → 작은 집
• 어리다 → 어린 조카

Yes. 조카 can mean either niece or nephew.

Korean often does not specify gender here unless it is necessary from context. If the speaker wants to be specific, they can say:

• 여자 조카 = niece
• 남자 조카 = nephew

But in everyday speech, just 조카 is very common.

와 같이 means with or together with.

In this sentence:

• 어린 조카와 같이 볼 만해서

it means:

• because it was something you could watch together with a young niece/nephew

Breakdown:

• 조카와 = with the niece/nephew
• 같이 = together

So 와 같이 is a natural combination meaning together with.

Very similar expressions are:

• 조카와 같이 = together with my niece/nephew
• 조카하고 같이 = same meaning, more conversational
• 조카와 함께 = with my niece/nephew, slightly more formal/literary

볼 만하다 is a very useful pattern. It comes from:

• 보다 = to see/watch
• -(으)ㄹ 만하다 = to be worth doing / to be decent enough to do / to be suitable to do

So 볼 만하다 can mean:

• worth watching
• good enough to watch
• watchable
• in this context, appropriate enough to watch

Here the nuance is not only that the video is interesting, but also that it is suitable enough to watch together with a young child.

So 어린 조카와 같이 볼 만하다 means something like:

• it’s suitable enough to watch with a young niece/nephew
• it’s a video you could watch together with a young niece/nephew

-해서 here connects the reason to the next action.

• 볼 만하다 = to be worth watching / suitable to watch
• 볼 만해서 = because it was worth watching / because it seemed suitable to watch

So the sentence structure is:

• 그 영상은 어린 조카와 같이 볼 만해서 = Because that video was suitable to watch with a young niece/nephew,
• 이모한테도 추천했어 = I recommended it to my aunt too.

This -아/어서 ending is very common for giving a reason:

• 재미있어서 봤어 = I watched it because it was fun
• 좋아서 샀어 = I bought it because I liked it
• 볼 만해서 추천했어 = I recommended it because it was worth watching

Usually it is mildly positive, but not always strongly enthusiastic.

볼 만하다 often suggests:

• it is decent
• it is worth trying
• it is good enough
• it is not bad

So it can sound a little more moderate than a very strong expression like:

• 정말 재미있다 = it’s really fun
• 꼭 봐야 한다 = you absolutely must watch it

In this sentence, 볼 만하다 gives a practical judgment:
the video seems appropriate and decent enough to watch with a young child.

이모한테도 breaks down like this:

• 이모 = maternal aunt, specifically mother’s sister
• 한테 = to
• 도 = also / too / even

So 이모한테도 추천했어 means:

• I recommended it to my aunt too
• I even recommended it to my aunt

The exact nuance of 도 depends on context:

• too / also if the speaker recommended it to other people as well
• sometimes even if recommending it to the aunt is slightly noteworthy

Korean family terms are much more specific than English ones.

이모 means:

• your mother’s sister

Other kinds of aunts use different words, for example:

• 고모 = father’s sister
• 숙모 = father’s brother’s wife
• 외숙모 = mother’s brother’s wife

So 이모 is not just any aunt. It specifically refers to the speaker’s or relevant person’s maternal aunt.

This is one reason Korean family vocabulary can feel very detailed to English speakers.

All three can mark the recipient, but they differ in style and politeness.

• 한테 = common, conversational
• 에게 = a bit more neutral or written
• 께 = honorific, used when showing respect to the recipient

So:

• 이모한테 추천했어 = casual and natural in speech
• 이모에게 추천했어 = also possible, slightly more neutral/written
• 이모께 추천했어요 = more respectful toward the aunt

Because the sentence ends in casual speech with 추천했어, 한테 fits very naturally.

추천했어 is the casual past tense of 추천하다 (to recommend).

Breakdown:

• 추천하다 = to recommend
• 추천했어 = recommended / I recommended

This is plain, informal speech, often used:

• with friends
• with close family
• in diary-style narration
• in casual conversation

A more polite version would be:

• 추천했어요

A more formal written/spoken version could be:

• 추천했습니다

Yes, the implied subject is most naturally I.

Korean often omits subjects when they are understood from context. So even though the sentence does not explicitly say I, the ending 추천했어 usually implies the speaker is saying:

• I recommended it to my aunt too

A more explicit version would be:

• 나는 그 영상은 어린 조카와 같이 볼 만해서 이모한테도 추천했어.

But Korean usually leaves out 나는 if it is already obvious.

Most naturally, they are understood as the speaker’s:

• my young niece/nephew
• my aunt

Korean often leaves out possessives like my when the relationship is obvious from context.

So although the sentence says just:

• 어린 조카
• 이모

it is very natural to understand:

• my young niece/nephew
• my maternal aunt

Depending on context, they could belong to someone else, but without extra information, listeners usually assume they relate to the speaker.

The sentence has a very common Korean pattern:

[topic] + [reason clause] + [main action]

Breakdown:

• 그 영상은 = as for that video
• 어린 조카와 같이 볼 만해서 = because it was suitable/worth watching with a young niece/nephew
• 이모한테도 추천했어 = I recommended it to my aunt too

So the logic is:

1. introduce the topic: that video
2. explain the reason: it seemed suitable for watching with a young child
3. say the action: I recommended it to my aunt too

This reason-before-main-action structure is extremely common in Korean.