Key Facts
- Hangul: 로그인하다 (rogeuinhada)
- Meaning: to log in
- Level: B1
- Part of speech: verb
- Stem: 로그인하
- Conjugation class: 하다 type
- Grammar: The site or account usually takes 에, as in 사이트에 로그인하다.
- Usage: Technology loanword. The opposite is 로그아웃(하다); the noun is 로그인.
What Does 로그인하다 Mean?
It is intransitive: the site or account takes 에, as in 사이트에 로그인하다. The opposite is 로그아웃(하다), and the noun is 로그인.
Senses:
- to log in: Sign in to an account or site, as in 앱에 로그인하다.
How Do You Pronounce 로그인하다?
로그인하다 is read as spelled, with the three loanword syllables 로, 그 and 인 kept clear. The formal present 로그인합니다 is [로그인함니다], and the past 로그인했어요 is [로그인해써요].
How Do You Use 로그인하다 in a Sentence?
먼저 계정에 로그인해요.
First, log in to your account.
먼저 계정에 로그인해요 names the account with 에. 먼저 means first.
방금 새 계정으로 로그인했어요.
I just logged in with a new account.
방금 새 계정으로 로그인했어요 uses 으로 for the account used. 방금 means just now.
로그인하면 주문을 볼 수 있어요.
If you log in, you can see your orders.
로그인하면 주문을 볼 수 있어요 uses the conditional 로그인하면 and then the ability phrase 볼 수 있어요.
How Does Rogeuinhada Conjugation Work?
로그인하다 is a 하다 verb. 하 and 여 contract to 해, giving 로그인해요 and 로그인했어요. Endings that begin with a consonant keep 하: 로그인하면, 로그인하는, 로그인하세요.
로그인하다
| Form | Korean | Romanization | Rule |
|---|---|---|---|
| Polite present | 로그인해요 | ||
| Polite past | 로그인했어요 | ||
| Polite future (plan) | 로그인할 거예요 | ||
| Polite future (intention or guess) | 로그인하겠어요 | ||
| Formal present | 로그인합니다 | ||
| Formal past | 로그인했습니다 | ||
| Formal future | 로그인할 것입니다 | ||
| Casual present | 로그인해 | ||
| Casual past | 로그인했어 | ||
| Casual future | 로그인할 거야 | ||
| Want to (polite) | 로그인하고 싶어요 | ||
| Honorific polite | 로그인하세요 | ||
| Because / and then | 로그인해서 | ||
| If (conditional) | 로그인하면 | ||
| Present modifier (before a noun) | 로그인하는 | ||
| Past modifier (before a noun) | 로그인한 | ||
| Future modifier (before a noun) | 로그인할 | ||
| Negative with 안 (short) | 로그인 안 해요 | ||
| Negative (long form) | 로그인하지 않아요 |
Sound Changes
| Form | Korean | Sounds like |
|---|---|---|
| Polite past | 로그인했어요 | [로그인해써요] |
| Polite future (plan) | 로그인할 거예요 | [로그인할꺼예요] |
| Polite future (intention or guess) | 로그인하겠어요 | [로그인하게써요] |
| Formal present | 로그인합니다 | [로그인함니다] |
| Formal past | 로그인했습니다 | [로그인핻씀니다] |
| Formal future | 로그인할 것입니다 | [로그인할꺼심니다] |
| Casual past | 로그인했어 | [로그인해써] |
| Casual future | 로그인할 거야 | [로그인할꺼야] |
| Want to (polite) | 로그인하고 싶어요 | [로그인하고 시퍼요] |
| Negative (long form) | 로그인하지 않아요 | [로그인하지 아나요] |
Common Mistake
Wrong: ✗ 사이트를 로그인해요
Correct: ✓ 사이트에 로그인해요
Why: The site is a place you enter, so it takes 에, not 을/를.
What Is Easy to Confuse with 로그인하다?
| Word | How to tell it from 로그인하다 |
|---|---|
| 입력하다 | 입력하다 is to type in information; 로그인하다 is the whole step of signing in. |
| 가입하다 | 가입하다 is to sign up or join; 로그인하다 is to sign in to an account you already have. |
입력하다 is typing in information, while 로그인하다 is the whole step of signing in. 가입하다 is signing up or joining. 로그인하다 is for an account you already have.
Where Does 로그인하다 Turn Up?
Apps, shops and sites all use this word. 클릭하다 and 확인하다 usually come next, and 저장하다 (to save) often follows once you are in. Because the verb is built on a loanword, you can also use the bare noun 로그인 in menus and instructions.
Finding an Order in a Shopping App
Alex cannot find an order. Jisu explains the first step, and Alex reports completing it. The forms move from a polite instruction to the past and then a condition.
Alex
주문이 안 보여요.
Jumuni an boyeoyo.
I cannot see my order.
Jisu
먼저 로그인하세요.
Meonjeo rogeuinhaseyo.
Please log in first.
Alex
네, 로그인했어요.
Ne, rogeuinhaesseoyo.
Okay, I have logged in.
Jisu
로그인하면 주문을 볼 수 있어요.
Rogeuinhamyeon jumuneul bol su isseoyo.
Once you log in, you can see your orders.
로그인하세요 tells Alex what to do; 로그인했어요 reports that the step is complete. 로그인하면 introduces the condition for viewing orders. In this setting, 먼저 means that signing in comes before looking for the order, not that signing in creates a new account.
Reading a Korean Login Screen
로그인 is the short noun label used on a sign-in button. A screen does not need the full verb 로그인하다 because the button already makes the action clear. 회원가입, often placed nearby, means membership registration or signing up. Choose it when creating access, rather than when returning to an existing account.
자동 로그인 means “automatic login.” 로그인 유지 means “stay signed in” or “keep me logged in.” Both contain the noun 로그인, but they describe a setting rather than telling you that a sign-in attempt has just succeeded. A selected option is different from a confirmation message.
로그인 실패 means “login failure.” Here 실패 names the failed result. 로그인 오류 means “login error,” a broader message that may refer to a problem during the process. The wording alone does not identify the cause; look for a separate message about the password, account or connection.
Site, Account and Sign-in Method
사이트에 로그인하다 names the site being entered. 계정으로 로그인하다 identifies the account used. The particles answer different questions: 에 points to where you sign in, while 으로 identifies the account or method. This explains why the existing examples use both 계정에 and 계정으로 in different frames.
이메일로 로그인 means “log in with email.” A service may instead offer a phone number or another account provider. The 로 ending marks the method. You will see the noun version on buttons even though a spoken instruction would usually add an ending to the full verb.
입력하다 is a smaller step within the process: entering information. You might type a password and still fail to log in. Conversely, a saved account or an automatic method may let you sign in without manually typing a password each time. The two verbs describe different actions, so one does not guarantee the other.
What Is Tricky about Spacing and Negative Meaning?
Write 로그인하다 as one word for the verb used on this page. When using the split short negative, write 로그인 안 해요 with spaces. 로그인하지 않아요 is the longer negative. It reports that someone does not sign in, which may be a deliberate choice.
로그인이 안 돼요 is a common way to report that login is not working. The noun 로그인 takes 이, and the rest describes the failed or unavailable action. It fits asking for help with a screen. A sentence saying you do not log in can leave the reason unclear; a sentence saying login does not work points to a problem.
The honorific form 로그인하세요 is common in instructions directed to a user. The site or account itself is not being honored. Customer help text often uses this polite request instead of the informal 로그인해, which belongs in close conversation or blunt instructions.
Words around an Account
| Related word | Meaning | What it identifies |
|---|---|---|
| 아이디 | user ID | The identifier for a user account. |
| 비밀번호 | password | The secret used to authenticate access. |
| 계정 | account | The account you create and return to. |
| 로그아웃 | logout / sign-out | The action of ending the signed-in session. |
The technology vocabulary lesson teaches these words with apps, computers and internet actions. 비밀번호 찾기, literally “finding the password,” commonly labels a password-recovery route. 아이디 찾기 is the corresponding route for recovering an account identifier. These labels are useful even if you do not yet understand the whole help page.
Login Language in Conversation and Instructions
A friend may say 로그인했어요 to report that they are now signed in. That statement describes the completed action, not whether a particular page has loaded. A help instruction using 로그인하면 then explains what becomes available after sign-in, such as seeing orders or saving settings.
The same verb works for an app, a website or an account on a shared device. The surrounding nouns identify the setting; the 하다 conjugation stays the same. Keeping the sign-in verb stable lets you focus on the unfamiliar labels around it.
Mini Drill: the Sign-in Step
- Give the polite past of 로그인하다.
- Politely tell a user to log in.
- Give the conditional form “if you log in.”
- Write the split short negative with 안.
Show drill answers
- 로그인했어요.
- 로그인하세요.
- 로그인하면.
- 로그인 안 해요.
Quick Self-Test
- Which button creates membership: 로그인 or 회원가입?
- What does 로그인 유지 describe?
- Does entering a password necessarily mean login succeeded?
Show answers
- 회원가입.
- Keeping the user signed in.
- No. 입력하다 describes entering information; the sign-in attempt may still fail.
Frequently Asked Questions
Which Particle Marks the Site?
에, as in 사이트에 로그인해요.
What Is the Opposite?
로그아웃(하다).
How Do I Say If You Log in, You Can See Your Orders?
로그인하면 주문을 볼 수 있어요.
Is 로그인하다 the Same as Signing Up?
가입하다 is signing up, and 로그인하다 is signing in to an existing account.
Which Words Are Related to 로그인하다?
What Should You Learn Next?
Compare 입력하다 and 가입하다, then 클릭하다. The rule behind 로그인해요 (to log in) is in 하다 to 해요, and the Korean verb conjugator tests other stems. For the negative of 로그인하다 (to log in), see negating 하다 verbs. 로그인하다 (to log in) sits beside 입력하다 and 클릭하다 in the Korean verb dictionary.