Saying "I drink water" in Korean requires understanding how subjects, objects, and verbs work in a language that puts the verb at the very end of the sentence. In Korean, the direct translation is mureul masyeoyo, which translates literally to "water [object marker] drink [polite present tense]."
Getting this simple phrase right opens the door to understanding how Korean sentence structure operates on a daily basis. Whether you are ordering a drink at a restaurant in Seoul or chatting with a language exchange partner online, mastering this fundamental building block shifts your skills from memorizing isolated vocabulary words to constructing complete, natural sentences.
Breaking Down the Phrase: Vocabulary and Grammar
To understand why "I drink water" sounds the way it does in Korean, you have to look at the individual components. Korean sentences follow a Subject-Object-Verb (SOV) order, which differs from English's Subject-Verb-Object (SVO) pattern.
The three core elements of our target sentence are water, the object marker, and the verb to drink.
The Noun: Water (Mul)
The Korean word for water is mul (물). It is a native Korean word, meaning it doesn't come from Chinese characters (unlike many other Korean nouns). You will hear this word constantly in daily life, especially when dining out.
The Object Marker: -eul / -reul
Korean uses particles attached to the ends of nouns to show their grammatical role in a sentence. Because water is the direct object—the thing being acted upon—you need an object marker.
- Use eul (을) if the noun ends with a consonant (e.g., mul becomes mureul because of smooth pronunciation linking).
- Use reul (를) if the noun ends with a vowel.
Because mul ends in the consonant 'l', you attach eul, merging them smoothly into mureul (물을).
The Verb: To Drink (Masida)
The dictionary form of the verb "to drink" is masida (마시다). However, you almost never use dictionary forms in normal conversation. You must conjugate the verb to match the appropriate level of politeness and tense.
Conjugating for Politeness: Standard Polite Form
Korean speech levels are mandatory. Using the wrong level can sound jarring or rude. For everyday interactions with strangers, service workers, acquaintances, and older peers, the standard polite form (known as haeyocheo) is your safest and most common choice.
To conjugate masida into the standard polite present tense:
- Take the dictionary stem: masi- (마시-)
- Apply the politeness rule (adding -eoyo or -ayo based on vowel harmony). For stems ending in i, masi- plus -eoyo contracts into masyeoyo (마셔요).
Put it all together:
- Mureul masyeoyo. (물을 마셔요.)
- Meaning: "I drink water" or "I am drinking water."
In Korean, subject pronouns like "I" (jeo or na) are usually omitted if the context makes it obvious who is performing the action. If you are the one holding the glass, everyone knows you are the subject. Stating "I" explicitly can actually sound unnatural unless you are contrasting yourself with someone else (e.g., "HE is drinking juice, but I am drinking water").
Exploring Other Formality Levels
Depending on who you are talking to, you will need to adjust your verb endings. Here is how "I drink water" transforms across different social contexts in South Korea.
Casual Form (Banmal)
Use this form only with close friends of the same age or younger, or with children. Using casual speech with strangers or superiors is considered disrespectful.
To make it casual, drop the polite ending -yo:
- Mureul masyeo. (물을 마셔.)
- Meaning: "I drink water" (casual).
Formal / Business Form (Hapsyochae)
Use this form in formal presentations, official broadcasts, customer service settings, or when addressing people who outrank you significantly in a corporate or military hierarchy.
To make it formal and polite:
- Change the stem to masipnida (마십니다).
- Mureul masipnida. (물을 마신다 or 물을 마십니다 depending on speech style, but standard formal is masipnida).
- Meaning: "I drink water" (formal).
Past and Future Tenses
Life doesn't only happen in the present. Here is how to say you drank water yesterday or will drink water later.
Past Tense: "I drank water"
To talk about an action completed in the past, add the past-tense infix -asseo- or -eosseo- before your polite ending. For masida, it contracts into masyeosseoyo (마셨어요).
- Mureul masyeosseoyo. (물을 마셨어요.)
- Meaning: "I drank water."
Future Tense: "I will drink water"
To express an intention or future action, use the pattern -(eu)l georayo or the simpler auxiliary construction meaning "plan to" or "will." A very natural way to say "I will drink water" is:
- Mureul masil geoyeyo. (물을 마실 거예요.)
- Meaning: "I will drink water."
Common Mistakes Beginners Make
When learners first start constructing sentences like "I drink water," a few predictable errors tend to pop up. Watch out for these traps:
- Forgetting the object marker entirely: Saying Mul masyeoyo sounds like "Water drinks [something]" rather than "I drink water," because dropping particles makes the grammar ambiguous. While native speakers might catch your drift in casual speech, keeping the particle builds strong foundational habits.
- Overusing the pronoun "I": Constantly saying Jeoneun mureul masyeoyo ("As for me, I drink water") sounds repetitive and robotic. Trust the context and drop the pronoun.
- Using dictionary forms: Leaving verbs in their unconjugated state (like saying Mureul masida) is like walking up to someone in English and saying "Water to drink." Always conjugate your verbs.
Real-World Context: Ordering Water at a Restaurant
When you sit down at a Korean restaurant (sikdang), water is often free and self-serve, or brought out in a bottle automatically. If you need to ask for water or state that you are drinking it, here are phrases you will actually use in the wild.
If you want to ask for water politely, you change the sentence from a statement to a request using 주세요 (juseoyo—please give me):
- Mul juseoyo. (물 주세요.) — "Please give me water."
If a server asks what you are ordering or offering, you might point to your glass and confirm:
- Mureul masyeoyo. — "I'm drinking water." (For example, declining alcohol when offered soju or beer).
To dive deeper into the structure of polite Korean speech and verb conjugations, check out the comprehensive lessons on Talk To Me In Korean or read the official language guidelines provided by the National Institute of Korean Language.
Frequently Asked Questions
Can I say "na" instead of "jeo" for "I"?
Yes, na (나) is the casual word for "I," while jeo (저) is the polite, humble version. If you are using the polite masyeoyo ending, it is generally safer and more polite to use jeoneun if you must specify "I," though omitting the pronoun entirely is still the most natural choice.
Is tap water safe to drink in South Korea?
Yes, tap water in South Korea (known as arisu in Seoul) is heavily monitored and technically safe to drink. However, many local residents prefer to use water purifiers (jeongsu-gi) or drink bottled water (saengsu) out of habit and preference for taste.
Why does the vowel sound change from masida to masyeoyo?
This is a standard Korean vowel contraction rule. When a verb stem ending in i meets an ending starting with eo, the i and eo combine to form the sound yeo. You will see this pattern across many regular Korean verbs.
How do I say "I am thirsty" instead?
If you want to express the feeling that drives you to drink water, the adjective is malla or more commonly mokmallayo (목마르다 / 목마어요), meaning "my throat is dry" or "I am thirsty." You can say:
- Mokmallayo. Mul juseoyo. — "I'm thirsty. Please give me water."
