i suggest if you don't mine its more good learning in other language if you started in basic! korean hangul is need more time to learn about it. but you can easy to write and read in hangul. its more enjoying learning in korean when you already learn in basic.^_^ 안녕하세요??

이/가(subject particle) the subject of a sentence is designated by a subject particle 이 or 가. For vowel-ending words,가 is used. On the other hand, consonant ending words 이 is used. example: 마크씨가 미국 사람 입니다 Mark is american 선생님이 한국 사람 입니다. The teacher is korean

it doesn't help you my friend, try to learn basic korean first specially in hangul so you can enjoy korean language ^-^

its not embarrassing.... now a days i think no one don't know how so important virginity...

내가 당신을 죽일

you mean in english... teacher kim when did you came in here? i think 김 선생님이 언제 (여기에) 왔었어요... in this case you have two past tense (do-present, did-past) (come-present, came-past) in korean presentence verb+아요,어요,해요... i think you already know that. so in present 오다 to come into past tense 오+았요= 왔어요... then you have one past tense again "did" in present is do in korean 있다 past-- 었다 so thats why 왔었어요.. i hope you get what i mean?

안넝하세요..is means hello, a formal greeting, it is all the same meaning by english good morning, good afternoon, and good evening. 안넝.. is informal for friend family that close to you.. but in telephone don't say 안넝하세요 when u answer the call its another meaning it is 여보세요. 안녕히 가세요 mean good bye.. it is formal way,older than you or people have in higher position. 안녕 for close to you it is informal word.. i also beginner in korean so i guess i can answer your question