에 (Place or time)
We haven’t talked about places or times yet, but if you do an action at a time, you must attach the particle “에” to the word indicating the time.
“에” is also attached to a word to indicate that it is a place in the sentence. I want to write more about what “에” does, but at this point, it would only confuse you. For now, it is sufficient to know that “에” is used to indicate a place in a sentence.
It is hard to translate to english, but, “에” plays the role of the underlined words in the following sentences:
1) I went at 3pm
2) I went to the park
Sentences with a place/time can also have an object in them. For example:
3) I ate hamburgers at 3pm
If I were to write those same sentence using Korean structure and particles, they would look like this:
1) I는 3pm에 went
2) I는 park에 went
3) I는 hamburgers을 3pm에 ate
In these cases, “at 3pm” or “to the park” act as adverbs (a word that tells you when, where, how, how much). There is no set place for an adverb within a sentence, and it can generally be placed anywhere (except the end).
You can also use this particle twice in in a sentence:
월요일에 학교에 안 갑니다.
( I didn't go to school on Monday )
The particle is use once on "monday" (월요일) and once on "school" (학교)
Some time words dont use the this particle: 지금 , 오늘 , 내일 , 모레 , 어제 , 그저께.
