Which is correct an English teacher or a English teacher?

Related questions

1. Why English is important?
2. What is the most attractive English accent?
3. Is English really important?
4. Is English teacher a proper noun?
5. What a English or what an English?
6. Who invented English alphabet?
7. What is the hardest language?
8. Is British or American English more popular?
9. What language family is English?
10. Which English is used in India?

Tags

1. #native
2. #precise
3. #correct
4. #would
5. #though
6. #english
7. #biology
8. #might
9. #nationality
10. #majority
11. #teacher
12. #speakers
13. #example