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sajeoneul yeoreoyo.

사전을 열어요.sajeoneul yeoreoyo.
I open the dictionary.
FromLesson 7inHardcore Korean
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Questions & Answers about sajeoneul yeoreoyo.

What is the implied subject in 사전을 열어요?
Korean often omits the subject when it’s obvious from context. In 사전을 열어요, the implicit subject is usually I (“I open the dictionary.”). If you use it as a polite request, the implied subject can be you (“Please open the dictionary.”), but grammatically the same form applies.
Why is there -을 attached to 사전 (making 사전을)? What does it indicate?
-을 is the object-marking particle used after a consonant. It marks 사전 (“dictionary”) as the direct object of the verb. If a noun ends in a vowel, you would use -를 instead.
What is the dictionary form of 열어요, and how is it conjugated into the polite present tense?

The base (dictionary) form is 열다 (“to open”). Conjugation steps:

  1. Remove -다 → 열 (stem)
  2. Add -어요 (polite present ending) → 열어요
Why do we use -어요 rather than -아요 when conjugating 열다?

Korean vowel harmony for the polite ending:

  • If the stem ends in ㅏ or ㅗ, add -아요.
  • For all other vowels (ㅓ, ㅜ, ㅣ, ㅔ, ㅕ, etc.), add -어요.
    Since 열 contains ㅕ, you attach -어요, giving 열어요.
What level of formality does 열어요 represent?
The -어요 ending is the standard polite (해요) style—polite but not overly formal. It’s appropriate for everyday conversation with strangers, coworkers, or teachers when you want to be respectful without using the very formal -습니다 ending.
Is 사전을 열어요 a statement or a request? How can I tell?

The -어요 form can function as either:
• Statement (“I open the dictionary.”)
• Polite request (“Please open the dictionary.”)
Context, tone, and intonation distinguish them. A rising intonation or adding 제발 (“please”) makes it clearly a request. To be explicit, you can say 사전을 열어 주세요 (“Please open the dictionary for me.”).

How do I say “I opened the dictionary” or “I will open the dictionary” in Korean?

• Past tense: 사전을 열었어요 (열 + 었어요) = “I opened the dictionary.”
• Future tense: 사전을 열 거예요 = “I will open the dictionary.”
For a more formal future, you could say 사전을 열겠습니다.

How would I give a casual command to a friend: “Open the dictionary!”?

Use the informal imperative by dropping -요:
사전을 열어!
You can even omit the object particle in very casual speech: 사전 열어!

How is 열어요 pronounced, and how can I romanize it?
열어요 is pronounced [yeol-uh-yo]. A common romanization is yeol-eo-yo. Note that ㅕ (yeo) + ㅓ (eo) remain two syllables: 열 + 어요.

More from this lesson

nae (naui)gajokgajogi jibe isseoyo.jumalmadajeoneun jumalmada chaegeul ilgeoyo.gongwonsanchaekhadauri gajogeun jumalmada gongwoneseo sanchaekhaeyo.
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“How do speech levels work in Korean?”
Korean has multiple speech levels that indicate formality and politeness. The most common are the formal polite (‑습니다/‑ㅂ니다), informal polite (‑아요/‑어요), and casual (‑아/‑어) forms. Which level you use depends on who you're speaking to and the social context.

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