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In this lesson, we are looking at the sentence ending -(\ub294)\uad6c\ub098 and -(\ub294)\uad70\uc694. -(\ub294)\uad6c\ub098 is used in \ubc18\ub9d0 (casual, informal language) and -(\ub294)\uad70\uc694 is only used in \uc874\ub313\ub9d0 (polite, formal language).

When are they used?
You use -(\ub294)\uad6c\ub098 and -(\ub294)\uad70\uc694 when you just realized or found out about something for the first time, mainly to express your realization. You can sometimes use them to show that you are surprised, but this depends on the intonation of your sentence.

Let's compare some sentences using the -(\ub294)\uad6c\ub098 or -(\ub294)\uad70\uc694 ending with some plain sentences.

1.
\uc5ec\uae30 \uc788\uc5c8\uc5b4\uc694. [yeo-gi i-sseo-sseo-yo.] = It was here.

(\uc874\ub313\ub9d0) \uc5ec\uae30 \uc788\uc5c8\uad70\uc694. [yeo-gi i-sseot-gun-yo.] = (I see that) it was here.
(\ubc18\ub9d0) \uc5ec\uae30 \uc788\uc5c8\uad6c\ub098. [yeo-gi i-sseot-gu-na.] (same meaning as above)

2.\xa0
\uc0dd\uac01\ubcf4\ub2e4 \ube44\uc2f8\uc694. [saeng-gak-bo-da bi-ssa-yo.] = It's more expensive than I thought.

(\uc874\ub313\ub9d0) \uc0dd\uac01\ubcf4\ub2e4 \ube44\uc2f8\uad70\uc694. [saeng-gak-bo-da bi-ssa-gun-yo.] = (I see that) it is more expensive than I thought.
(\ubc18\ub9d0) \uc0dd\uac01\ubcf4\ub2e4 \ube44\uc2f8\uad6c\ub098. [saeng-gak-bo-da bi-ssa-gu-na.] (save meaning as above)

3.
\uc5ec\uae30 \uc0b4\uc544\uc694. [yeo-gi sa-ra-yo.] = I live here. She lives here. They live here. etc.

(\uc874\ub313\ub9d0) \uc5ec\uae30 \uc0ac\ub294\uad70\uc694. [yeo-gi sa-neun-gun-yo.] = (I see that) you live here.
(\ubc18\ub9d0) \uc5ec\uae30 \uc0ac\ub294\uad6c\ub098. [yeo-gi sa-neun-gu-na.] = (same meaning as above)

Construction
[Past Tense]
Verb stem + -\uc558/\uc5c8/\uc600\uad70\uc694
Verb stem + -\uc558/\uc5c8/\uc600\uad6c\ub098

[Present Tense]
- Action Verbs: Verb stem + -\ub294\uad70\uc694/\ub294\uad6c\ub098
- Descriptive Verbs: Verb stem + -\uad70\uc694/\uad6c\ub098

-(\ub294)\uad70\uc694 and -(\ub294)\uad70
Generally, when you drop the -\uc694 at the end of a Korean sentence, it becomes a \ubc18\ub9d0 sentence and it is the same with -(\ub294)\uad70\uc694. Therefore, instead of saying -(\ub294)\uad70\uc694, if you say -(\ub294)\uad70, it becomes the same level as -(\ub294)\uad6c\ub098. Even though the basic meaning is the same, however, -(\ub294)\uad6c\ub098 is more commonly used in spoken language and among females than -(\ub294)\uad70. Sometimes people would say -(\ub294)\uad70, but saying this will make your sentence sound a bit like written language and more masculin.

Ex)
\uc774\uac70 \ub9db\uc788\uad6c\ub098.
[i-geo ma-sit-gu-na]
= (I didn't know before but I just realized that) this is delicious!

\uc774\uac70 \ub9db\uc788\uad70.
[i-geo ma-sit-gun.]
--> This sentence has the same basic meaning as the one above, but it sounds a litte more masculin and like written language.

Nouns + -\uad70\uc694/\uad6c\ub098
When you want to say "Noun + -\uc774\ub2e4", if the noun ends with a consonant, you keep the -\uc774 and add -\uad70\uc694 or -\uad6c\ub098.

Ex)
\ud559\uc0dd\uc774\uad70\uc694. / \ud559\uc0dd\uc774\uad6c\ub098.

But if the noun ends with a vowel, you drop the -\uc774 and just add -\uad70\uc694 or -\uad6c\ub098.

Ex)
\uc774\uac70\uad70\uc694. / \uc774\uac70\uad6c\ub098.

More Sample Sentences
1. \uc5ec\uae30 \uc9c4\uc9dc \ub113\uad6c\ub098!
[yeo-gi jin-jja neolp-gu-na!]
= This place is so big!

2. \uc774\uac8c \uadf8\uac70\uc600\uad70\uc694!
[i-ge geu-geo-yeot-gun-yo!]
= So this was what you were talking about!

3. \uc774\ub807\uac8c \ud558\ub294 \uac70\uad70\uc694.
[i-reo-ke ha-neun geo-yeot-gun-yo.]
= So this is how you do it!

4. \ubc8c\uc368 11\uc6d4\uc774\uad6c\ub098!
[beol-sseo si-bi-rweol-i-gu-na!]
= (I didn't realize before but) it's already November!

5. \uc5b4\uc81c\ub3c4 \ub9cc\ub0ac\uad70\uc694.
[eo-je-do man-nat-gun-yo.]
= (I didn't know before but I just found out that) you met yesterday too.