1. I just saw your mail sent to Nakorn.
2. He has been very busy and barely has free time.
3.I saw your brochure sent to us long time ago.
4. Now my son/daughter can speak English with me most of the time but she/he has some pronouncing problem and may not speak correctly. Because I'm a bad sample for her/him for both pronouncing and speaking.
5. So I would like both of us to have a chance to speak with the native speaker, it may solve our problems.
6. But i'm not sure where you are now. Can I take her/him to study with you?
7. Best Regards / Sincerely
4. Currently, my child can speak English to me most of the time. However, he/she still have some pronunciation problems and may not speak correctly. I think my poor English affecting her/him on both pronunciation and accent.
6. I am not sure where are you located.