-군요

V/Adj/이다,아니다 + (는)군요 It is used when the speaker notices a new fact or realizes something through direct or indirect experience. It often appears in exclamatory sentences.

집이 좀 더럽군요.

The house seems quite messy.

이게 그 유명한 불고기군요.

So this is the famous Bulgogi.

• When speaking casually(informal), we use ‘-군’ or ’-구나’. ‘-군’ can feel like you are talking to yourself or thinking aloud, so when speaking you tend to use -구나 more.

집이 좀 더럽군.

= 집이 좀 더럽구나.

인테리어가 정말 특이하구나!

Wow, the interior design is really unique!

• 네요 VS 군요

네요	군요
Only when the speaker has directly experienced or facts that have clear evidence. (after eating) 약이 너무 쓰네요 O This medicine is too bitter! (without eating, just heard or saw) 약이 너무 쓰네요 X	Not only for things directly experienced by the speaker but also for facts learned from others or derived through reasoning. (after eating) 약이 너무 쓰군요 O This medicine is too bitter! (without eating, just heard or saw) 약이 너무 쓰군요 O Oh okay, that medicine is too bitter!

• Verb (present)

Root + 는군요

ex. 가는군요, 먹는군요, 만들다 → 만드는군요

• Adjective, 이다/아니다, 있다/없다, -었-/-겠-

Root + 군요

ex. 예쁘군요, 덥군요, 멀군요, 있군요(재밌군요, 맛있군요) N+(이)군요/아니군요 가는군요, 갔군요, 가겠군요, 예뻤군요, 예쁘겠군요

When a verb combines with -군요, -는- is added to express the present tense. For adjectives, or for verbs that already include a tense like -겠- or -었-, you can just add -군요.