-지 그래(요)?: Why Don't You…?

-지 그래(요)? is the ending you use to nudge someone toward the obvious good idea they somehow haven't acted on — "why don't you just…?" It's warm and a little exasperated in a caring way, the tone of a friend who can see you struggling and gently points at the easy fix. What makes it worth a whole page is a twist English speakers rarely expect: change the tense and you change the meaning. Present -지 그래요 gives friendly advice; past -지 그랬어요 flips into a soft "you should have…" — a gentle reproach that the good idea has already sailed.

The present: -지 그래(요)? — "why don't you…?"

Attach -지 그래요 to a verb stem and you get a suggestion that leans in: not a neutral "you could," but a mildly insistent "come on, why not just…?" It presupposes the action is clearly a good idea and mildly wonders why the listener is hesitating.

The little 좀 ("a bit") that so often rides along softens it further — it's the difference between hectoring and coaxing. Structurally, 그래(요) here is the verb 그러다 ("to do so / be that way") in a rhetorical question: literally "you don't do X — why be that way?", i.e. "why not do X?"

The past: -지 그랬(어요)? — "you should have…"

Now the twist. Put 그러다 into the past — -지 그랬어요 — and the whole thing swings from advice to hindsight. Because the good idea was available in the past and the listener didn't take it, you're gently telling them they should have. It's a reproach, but a soft, sympathetic one — closer to "aw, you should've just…" than to an accusation.

Register: friendly, and only downward or sideways

This is the load-bearing caution. -지 그래요 is casual and intimate — perfect for friends, younger people, close juniors, or family. Aimed up the social ladder, at a boss, teacher, client, or an elder you don't know well, it sounds presumptuous, even a touch bossy, because you're implying they've overlooked something obvious. The -요 makes it polite in form, but the frame itself carries a peer-to-peer intimacy that clashes with real deference. (See 반말 and intimate speech for why polite form and social distance aren't the same thing.)

Toward a superior, drop this frame entirely and use a deferential alternative — 좀 쉬시는 게 어떠세요? ("how about resting a bit?") or a plain honorific 좀 쉬세요 ("please get some rest").

-지 그래요 vs. its neighbors

Three tools sit close together, and picking the right one is mostly about tone and direction:

• -지 그래요? — warm, nudging, casual, listener-directed. "Why don't you just…?"
• -는 게 좋다 — neutral, register-flexible advice. "It'd be good to…" Safe upward, unlike -지 그래요.
• -(으)ㄹ걸 그랬다 — your own regret. "I should have…"

So for the same underlying idea, a friend gets 병원에 가 보지 그래요?, a client gets 병원에 가 보시는 게 좋겠어요, and your own hindsight is 병원에 갈걸 그랬어.

Common Mistakes

1. Aiming it up the social ladder. Because it implies the listener missed the obvious, it grates on a superior even with -요 attached.

2. Reading past -지 그랬어요 as a present request. It doesn't mean "tell me in advance (from now on)" — that would be 미리 말해 주세요. The past form looks backward: "you should have told me."

3. Using it about yourself. -지 그래요/그랬어요 always points at the listener. For your own regret, switch to -(으)ㄹ걸 (그랬다).

4. Attaching it to an adjective. It suggests taking an action, so it takes action verbs, not descriptive ones.

Key Takeaways

• -지 그래(요)? = warm, nudging "why don't you…?" — a caring push toward the obvious good idea.
• Its past -지 그랬(어요)? flips to a gentle "you should have…," a sympathetic look back at what the listener didn't do.
• It's casual and intimate: fine downward and sideways, presumptuous upward even with -요. Toward superiors use -는 게 어떠세요? or -(으)세요.
• It's listener-directed — for your own hindsight, use -(으)ㄹ걸 그랬다.
• Takes action verbs only; add 좀 to soften the nudge.