rearrange/rebook my airline schedule to go.

[keannu]

[FONT=&#48148]At the check-in counter, I found I hadn't brought my passport...[/FONT]
[FONT=&#48148]So I decided to get back home, and I had to rearrange/rebook my airline scheduleto go. It was lucky because there were many airline schedules for Tokyo. I got back home, and was able to take my passport back.

Are the underlined correct?[/FONT]

 

[Tarheel]

You needed to rebook your flight.

You take something back to where it's been before.

 

[tedmc]

There were many alternatives for flights to Tokyo. When I got home, I managed to find my passport.

 

[Tarheel]

I think what you mean is that when you got back home you found your passport.

 

[emsr2d2]

At the check-in counter, I found I hadn't brought my passport so I [STRIKE]decided[/STRIKE] had to [STRIKE]get[/STRIKE] go back home for it. [STRIKE]and[/STRIKE] As a result, I had to rearrange/rebook my [STRIKE]airline schedule to go.[/STRIKE] flight. [STRIKE]It was lucky because[/STRIKE] Fortunately, there were many other available [STRIKE]airline schedules for[/STRIKE] flights to Tokyo. I [STRIKE]got back[/STRIKE] went home, [STRIKE]and was able to take my passport back[/STRIKE] got my passport and went back to the airport.

See above.

 

[keannu]

I think what you mean is that when you got back home you found your passport.

By this, I meant "I took the passport and (take it back to the airport)- here "back' just means "toward" in Korean. It's hard to explain in English because of language difference. Anyway we say like that, but in English it's wrong.

take my passport back.

So this is the correct way that contains what I meant.
got my passport and went back to the airport.

 

[Tarheel]

got my passport and went back to the airport.

That's fine. All the rest is unhelpful. You have a habit of comparing English to Korean, and it's a habit you need to break. It isn't helping you with your English.

I don't know Korean, but even if I did I'm sure I would tell you the same thing. (If I had to know everybody's first language I would need to know a couple dozen languages.)