I have never tried Tutoring this subject before.
Experience: 0 years
American English is my only language, as I was born, and have always lived in the United States. I am 54, so I have had decades of practice.
I passed an English Proficiency exam the local community college gave me in my Senior year of high school. I was then able to skip the introductory English class when I went to S.I.U.-C.
I am a good writer, and speaker. I have a good vocabulary. My grammar skills are also good. I read regularly.
I post a lot on Facebook. By that I mean I compose my own long posts on various subjects. So, I get lots of practice writing. This helps my compositional skills to stay sharp.
In summary, I feel I am an excellent choice as an English Tutor, as I am good at all, or almost all, aspects of writing, reading, and speaking English.