How can you say that you are good in teaching English Language?

iam teaching chemistry by arabic and english language 

I can say that i am good in english through making conversations with native people, obtaining information from them and know how to understand their language.

I am good but I want some courses

My students shoud say that I am good or not.

I can say I am a good or not From the weekly results, then the monthly results, and then the final results

If you have no problem while teaching and can teach and explain fluently in the classsroom.

Your skills are also reflected in the study material, you supply.

it is easy to education in english because it is important global lannguage

By good conversation Good writing Communication skills Body language Know more about reading skills Beside have good exam like EILTS and TOFEL You can good in listen and easy to hear and understanding fast

Inoticed this from the impression of my students. By the end of the lecture they thank me in a way that shows their gratitude.  when I give  them exams or assignments they do very well. I dont find any difficulties in teaching any type of English courses.  I taught more than 10 courses. 

I development and learning my Languh

I am not teaching English Lanuage but I cal making a scientific conversation throgh our meeting