Is it correct to say this? I want to say “talk in Korean” should I say “한국어를 이야기해요!” Is it a correct form or is it awkward?

Silly question How is 할 conjugated in this sentence 내일 할 일이 많아요 Just confused on how it’s used

Is this how you convey location in Korean? I wrote an example of how I think it’s used from what I learned 난 별을 눈안에 있어요. I have stars in my eyes Is this correct? Can I have more examples?

How is -워요 used? Is it used only for Adjectives? I’m a little confused about how people use the -워요 when speaking

What’s the difference between these two sentences? -우리는 지금 어디입니까? -우리가 지금 어디입니까? I’m still trying to figure out the difference between 이/가 and 은/는

How is the word 아무 used? Recently I have been immersing myself in Korean more and I came across the word 아무 which to my knowledge meant “any” So is saying things like “아무 노래” any song “아무 사랑” any love “아무 음식” any food - correct? Weird question I know but it’s been on my mind