William Ashmore, Primary Lessons in Swatow Grammar…
“ Thóin signifies, to perceive. The addition of kìn to the verb is like adding the syllable “ed” to an English verb. thóin-kìn, perceived. thian-kìn, have heard. bũn-kìn, have„ heard„. siẽn-kìn, have thought. ”
