-도

Overview

The particle -도 is a versatile special particle in Korean that primarily conveys the meaning of addition or inclusion. It indicates that something is true for the current item, person, or situation, just as it is for another that has already been mentioned or implied. It can also be used for emphasis, often translating to "even," and in negative contexts to mean "not even" or "either."

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Usage

1. Addition/Inclusion ("also," "too"): Used to state that something applies to the current noun, pronoun, or adverb in addition to something else.

   • 저는 학생이에요. 제 친구도 학생이에요. (I am a student. My friend is also a student.)
   • 커피 좋아해요. 차도 좋아해요. (I like coffee. I also like tea.)

2. Emphasis ("even"): Used to emphasize a particular item, often implying surprise or an unexpected inclusion.

   • 너무 바빠서 밥 먹을 시간도 없었어요. (I was so busy that I didn't even have time to eat.)
   • 어린아이도 아는 쉬운 문제예요. (It's an easy problem that even a child knows.)

3. Negative Contexts ("not even," "either"): When used with negative expressions (e.g., 안, 못, -지 않다, 없다), -도 emphasizes a complete lack or absence.

   • 저는 사과를 안 먹어요. 배도 안 먹어요. (I don't eat apples. I don't eat pears, either.)
   • 어제 너무 피곤해서 잠도 못 잤어요. (I was so tired yesterday that I couldn't even sleep.)

4. With Question Words ("any"): When attached to question words (누구, 무엇, 어디, 언제, 왜, 어떻게) in a negative sentence, it creates a sense of "not any" or "no one/nothing/nowhere."

   • 아무도 없어요. (There isn't anyone.)
   • 아무것도 몰라요. (I don't know anything.)
   • 어디도 안 가요. (I'm not going anywhere.)

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Conjugation Rules

The particle -도 is straightforward to attach:

• It attaches directly to nouns, pronouns, and adverbs, regardless of whether they end in a vowel or a consonant.
  • 책 + 도 → 책도 (book also)
  • 저 + 도 → 저도 (I also/me too)
  • 빨리 + 도 → 빨리도 (quickly too/even quickly)
• It can replace the subject particle 이/가 and the object particle 을/를.
  • 제가 학생이에요 → 저도 학생이에요.
  • 책을 읽어요 → 책도 읽어요.
• It cannot replace other particles like location particles (에, 에서), time particles (에), or instrumental particles (으로). Instead, it combines with them.
  • 학교에 + 도 → 학교에도 (to school also/even to school)
  • 집에서 + 도 → 집에서도 (at home also/even at home)
• When used with verbs or adjectives, it typically follows a nominalized form (e.g., -는 것) or another grammatical ending (e.g., -아/어도, -고도). However, for the basic particle -도, the most common direct attachment is to nouns, pronouns, and adverbs.

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Knowledge Plus

• Contrast with -은/는: While -은/는 marks the topic and can imply contrast, -도 specifically adds an item to a list or emphasizes inclusion. For example, "저는 학생이에요" (I am a student - topic) vs. "저도 학생이에요" (I am also a student - addition).
• Emphasis on "Even": In many contexts, especially when expressing surprise or an extreme case, -도 functions identically to the English "even."
• Common Combinations: You will frequently encounter -도 combined with other particles, such as 에도 (also at/to), 에서도 (also from/at), 부터도 (even from), 까지도 (even until/to).
• "아무도" and "아무것도": These are very common fixed expressions meaning "no one" and "nothing" respectively, always used with a negative verb.