Reconstruction
Proto-Tai has been reconstructed in 1977 by Fang-Kuei Li and by Pittayawat Pittayaporn in 2009.
Proto-Southwestern Tai has also been reconstructed in 1977 by Fang-Kuei Li and by Nanna L. Jonsson in 1991.
| Proto-Tai | Thai script | ||
| 1st | singular | *ku | กู |
| dual (exclusive) | *pʰɯa | เผือ | |
| plural (exclusive) | *tu | ตู | |
| Incl. | dual (inclusive) | *ra | รา |
| plural (inclusive) | *rau | เรา | |
| 2nd | singular | *mɯŋ | มึง |
| dual | *kʰɯa | เขือ | |
| plural | *su | สู | |
| 3rd | singular | *man | มัน |
| dual | *kʰa | ขา | |
| plural | *kʰau | เขา |
Read more about this topic: Tai Languages