I couldn't speak ANY Japanese, which means students could spend ALL OF THE TIME practice speaking English or Chinese with me. When we learn languages, the first important thing we need to do is practice and practice and PRACTICE. I've been an English tutor in my own country for 5 years, mostly teaching students aging from 15 to 18. I'm pretty familiar with all the grammars and stuff. And I'm willing to help students in any helpful way they want.