I speak English well and is equivalent to reading and writing, because normal people in Thailand are not used by the English. Discussion on a daily basis at all to speak, and not only during the time that English only.
I speak English and can not read and write as well as I usually do not use English in Thailand. In everyday conversation yet To speak and only moments to learn English.
I speak and listen to English as well as reading and writing because it is usually people don't use English conversation in daily life. To say that a specific time period and English only.