-는/은
Used to contrast something or to simply present a topic ‘은’ follows a consonant and ‘는’ a vowel.
When used with nouns which become the subject of the object of the sentence.‘든/는’ replace the nominative and/or objective particle. This replacement of another Particle commonly takes place with auxiliary particles.
Examples:
| 애기가 밥은 잘 먹습니다. | The baby eats well |
| 저분은 참 좋아요. | That person is Mr. Kim. |
-(이) 나
Conveys the meaning of a selection. The meaning slightly varies depending upon usage. Without a consonant in the preceding word ‘이’ is dropped.
Used between two nouns conveys the meaning of “either this or that”.
Examples:
| 다방이나 식당에서 만납시다. | Let’s meet at either a coffee shop or restaurant. |
| 기차나 고속버스로 관광을 합니다. | Go sightseeing by either a train or an express bus. |
When used between a noun and a verb, conveys the meaning of the hesitant selection
of something.
Examples:
| 교외로나 나갈까요? | Shall we go out to the suburbs? |
| 놀지만 말고 책이나 좀 읽어요. | Don’t just play around, read some books. |