No problem ^^
jintana23 wrote:If I want to say the thing called 'homework', I will say '숙제 이란 걸요.'. Is it correct?
What about verbs?
The thing called 'eating'. Is it '먹이란 걸요.?
The thing called 'studying' 배우이란 걸요.
Not quite...
First off, we can more explicitly call this construction -(이)란 걸, because you only say the 이 part if the last syllable of the word you are attaching it to ends in a consonant. Also, this can only be attached to nouns, and it does not complete the sentence. Since the context you were originally asking about was song lyrics, I'll clarify that the thought is often completed in the next line of the song. Just keep in mind that you wouldn't necessarily say something in the same way in every day speech as you would in a song.
As a side note, the words in your example should be spelled like 먹이란 -> 먹기란 and 배우이 -> 배우기 (actually learning, not studying). I think it's a little more fluid to use words that are originally nouns, instead of turning verbs into nouns. For example 공부라는 걸.
Also, the reason why I pointed out that this construction is not complete thought by itself, and why Emily and I gave the full version, is that it ends in the object particle 을/를. You need a verb at the end of the sentence to complete the thought. On the other hand, I've seen this construction used as a title, in which case something like
Galbijim Wiki란? means "About Galbijim Wiki". Adding -란 to a noun means you are discussing the
idea of that noun, not the actual thing designated by the noun.