🇰🇷 Lesson 18: Hypotheticals & Regret

Ask a group of Korean friends 로또에 당첨된다면 뭐 할 거야? ("If you won the lottery, what would you do?") and the conversation will run for an hour. Ask them about their twenties and you'll hear a different kind of sentence: "If only I had studied harder back then…" Wishes, what-ifs and regrets are some of the most human things we say — and until now your Korean has had only one tool for them, -(으)면. This lesson gives you the rest of the toolkit: imagining, wishing, regretting, and setting practical conditions ("if you want to…", "only if…", "when it happens, do this").

🧠 The Mental Model: A Reality Dial

English marks how real a condition is by shifting tenses: "If it rains" (real) → "If it rained" (imaginary) → "If it had rained" (it didn't). Korean uses different endings instead. Think of a dial that turns from real to impossible:

The result half has its own tools: -(으)ㄹ 텐데 ("it would…"), -았으면 좋겠다 ("I wish") and -았으면 좋았을 텐데 ("it would have been nice if…"). Three practical conditions round things out: -(으)려면, -아야 and -거든.

🌈 -다면: "If (Hypothetically)…"

-다면 is built exactly like the reported-speech forms from Lesson 2: take the plain (한다체) form of the verb and add -면. If you can say 간다고 했어요, you can already say 간다면.

만약(에) ("if, supposing") and 혹시 ("by any chance") often open the sentence as a flag: "a hypothetical is coming". They work with -(으)면 too, but they are especially at home with -다면.

Which one? -(으)면 or -다면

The line is soft: in casual chat 로또에 당첨되면 뭐 할 거야? is perfectly natural. -다면 just makes "imagine this" explicit, which is why it dominates in songs, essays and TOPIK writing.

🌫️ -(으)ㄹ 텐데: "It Would…, So / But…"

텐데 is 터 (an old noun for "expectation") + 이다 + -ㄴ데. So -(으)ㄹ 텐데 literally says "given my expectation that…" — the speaker makes a confident guess, then either builds on it or leaves it hanging with a sigh.

Use 1 — Background for advice or a question

Use 2 — Wishes and regrets (hanging endings)

Which one? -(으)ㄹ 텐데 or -(으)ㄹ 테니까 (Lesson 4)

⏪ -았/었더라면: "If (Only) … Had…"

Here is the -더- from Lesson 17 again, this time looking back at a past that didn't happen. -았더라면 is the strongest counterfactual Korean has: it can only describe a past that is already closed. It almost always pairs with a "would have" result: -았을 텐데, -았을 거예요 or -지 않았을까요?

Look at the last example: a past condition with a present result (지금쯤 … 잘할 텐데). Korean mixes them just as English does — choose the tense of the result by when the result would be true.

Which one? Three ways to say "if … had"

🌠 Wishing: -았/었으면 좋겠다

This is the most common way to say "I wish" or "I hope" in Korean — and it confuses everyone at first because it uses a past form to talk about the present or future. Think of it as "It would be good if it had (already) happened": you picture the wish as fulfilled.

-(으)면 좋겠다 (without the past) also exists and means the same, a little more neutrally: 날씨가 좋으면 좋겠어요. -았으면 하다 is a softer, more formal variant — perfect for polite requests at work, as in the last example.

Regret: -았으면 좋았을 텐데 and -(으)ㄹ 걸 그랬다

-(으)ㄹ 걸 그랬다 is the everyday "should have" for your own choices; in chat it shrinks to just -(으)ㄹ걸: 살걸! ("Should've bought it!").

📌 -거든: "If/When That Happens, Then Do This"

You know -거든요 as a sentence ending that gives a reason (Lesson 5). -거든 in the middle of a sentence is a different animal: a condition that sets up an instruction, suggestion or promise.

Honestly, in casual speech -(으)면 covers all of these too (도착하면 문자 보내). -거든 adds a slightly deliberate, caring "when that moment comes…" tone — it's common from parents, teachers and older speakers, and in advice columns.

🎯 -(으)려면: "If You Want To…"

-(으)려면 is a shortening of -(으)려고 하면 ("if you intend to"). It states a goal; the second clause says what the goal requires — typically -아야 하다/되다, -(으)면 되다, 필요하다 or a command.

Stem rules are the usual ones: ㄹ-stems take -려면 directly (만들려면, 살려면), ㄷ-irregulars change (듣다 → 들으려면). Because it expresses intention, -(으)려면 goes with action verbs; for adjectives, add -아지다: 건강해지려면 ("to become healthy").

🔑 -아/어야: "Only If…"

You know -아야 하다 ("must"). Take away 하다 and -아야 becomes a connector meaning "only when X, Y" — X is the necessary condition, the key that unlocks Y.

🗂️ Which One? The Condition Family

💬 Dialogue: The Missed Deadline

Jihun and Sua are university friends, so they use 반말 (Lesson 1). Jihun has just found out he missed the exchange-programme deadline.

📰 Reading: 십 년 전의 나에게

A thirty-year-old writes a letter to their twenty-year-old self. Letters to oneself are a popular essay genre in Korean, and this one is in 한다체, the written style you'll study properly in Lesson 21.

Culture note — 소 잃고 외양간 고친다. "Fixing the cowshed after losing the cow" is the Korean proverb for acting too late, and you'll hear it whenever someone says -았더라면. The internet has its own version: 껄무새 (-ㄹ걸 + 앵무새 "parrot"), a jokey name for investors who keep squawking 그때 살걸! 그때 팔걸! ("Should've bought! Should've sold!"). Regret is universal — Korean just has very good grammar for it.

✏️ Practice

🧠 Check Your Understanding

❓ Common Questions

If these forms feel like a crowd right now, that's normal — B2 is where Korean starts offering three ways to say one thing, and choosing between them grows with exposure. Notice them in dramas and songs, and they'll sort themselves out.

🔮 Looking Ahead

You can now imagine, wish and regret. Next, in Lesson 19: Degree, Extent & Near Misses, you'll learn how Koreans measure things — "the more…, the more" (-(으)ㄹ수록), "so much that" (-(으)ㄹ 정도로), "I nearly…!" (-(으)ㄹ 뻔했다), and how to recommend something as "worth doing" (-(으)ㄹ 만하다). Expect a lot of friendly exaggeration.