Verb conjugation of "quejar" in Spanish

About ten hours later we landed in Bangkok, with the calculated time difference it was about two o'clock in the afternoon. I asked at the information desk how I could get to the domestic terminal.
I have even met someone who invited me to come and visit. It was an older couple who were renting apartments for language students. Well, actually there are agencies that offer the same as this couple, but I'm open.
I'm from England and am learning German. Maybe we can share tips and tricks. How's your level? If you want to practice together, we can make voice over IP calls and write letters and correct each other.