What's the difference between 관계 and 관련? They both mean: relation(s) (with/between), connection (with/between/to), association (with/between) So what's the difference between the two words? Thank you.

Difference between 분실하다 and 잃어버리다 What's the difference between 분실하다 and 잃어버리다? They both mean 'to lose'. And it looks like I can use them both for losing items. Thank you.

Help understanding this sentence ending in 봐 두었어요. I'm confused about this sentence. 내일 집들이가 있어서 미리 장을 봐 두었어요. 장을 보다 = to go to the market. So why is 두덨어요 added? Why isn't the sentence: 내일 집등이가 있어서 미리 장을 봤어요. ? Please help ^^ Thank you~

Other uses of 으로/로 I came across this vocabulary word: 식사를 규칙적으로 하다 I wonder why 으로 is used in this case? I only learned that 으로 is used as a directional particle. Is it used for another purpose? Thank you!

Sentence Structure and 에 vs 에세 I learned two new vocabulary words and I'm confused about them: A. 옷을 세탁소에 맡기다 to leave clothes at the dry cleaner's B. 세탁소에서 옷을 찾다 to pick up the dry cleaning 1. I'm confused about the sentence structure. I thought basic Korean sentence structure is: Subject - Noun - Object - Verb But sentence A is object (옷) - (noun) 세탁소 - verb (맡기다), right? Example sentence: 제는 옷을 세탁소에 맡겼어요. (I left the clothes at the dry cleaner's.) 2. I read many explanations about 에 vs 에세. 에: used to indicate the destination of a verb (used with directional verbs) 에서: used to indicate the location of an action So shouldn't it be 세탁소에 옷을 찾다? Because 'to pick up something' isn't a directional action... or is it? Please help! T_T

What's the difference between 돕다, 도와주다, and 도움을 주다? Is there a difference between these 3 words? I thought: 돕다 = to help 도와주다 / 도움을 주다 = to give help Is that right? Then what's the difference between 도와주다 and 도움을 주다? Thank you ^^