with something : ~(으)로 with someone : ~랑 같이 with(contains) something : ~이 있는 I'm eating my noodles with chopsticks. 나 젓가락으로 국수 먹고 있어. I'm with Katie right now. 나 지금 케이티랑 같이 있어. I'm walking to school with him. 나 걔랑 같이 학교에 걸어가고 있어. Videos with(contains) subtitiles are the best. 자막이 있는 동영상이 최고야. My name starts with '지'. 내 이름은 '지' 로 시작해.

That s definitely a topic that needs illustrative sentences, because there s no straightforward translation of "with" in Korean. 'with" + instrument can be translated either by -로 or replaced by a verb, like "using ..." (-을 쓰고). 'with' + people can most often be rendered by -하고/-(이)랑/과 or 와 (+같이 'together'), or, when you wanna make it clear that u're accompanying someone: -를 모시고 (for seniors) and -을 데리고 (for juniors). When 'with' simply states the existence of something, like 'a house with a bathroom', u shud attach a relative clause with the verb 있다 'exist': (X)-가 있는 (Y). There are still other possibilities!!!

it is good by Hujok . i think you need reading a book. and practice it. at first i'll translate it. 나는 젓가락을 가지고 국수를 먹는다. with + product : ~을 가지고 나는 지금 Katie와 함께 있다. with + people : ~ 와 함께 (together) - 나는 학교에 그와 함께 걸어가고 있다.