Sawatdee ka, Congratulations and sympathy can be expressed by using the word 'happy' and 'sorry' and followed by the final particles ด้วย/dûai/ [1] Expressing sympathy We say เสียใจด้วยนะ [sĭa-jai dûai ná] เสียใจ /sĭa-jai/ means 'to be sad' ด้วย /dûai/ is a particle used when 1) telling someone to do something 2) expressing congratulations and sympathy นะ /ná/ … [Read more...] about Expressing Thai congratulations and sympathy