In Thai, we say “ถ้าไม่อย่างนั้น” [tâa mâi yàang nán] for “Otherwise,..” which literally means “If not so.” However, you are probably more likely to hear the shorter versions of the expression, which are “ถ้าไม่งั้น” [tâa mâi ngán] and the most commonly used term, “ไม่งั้น” [mâi ngán].
Examples:::
กินข้าวให้หมดก่อน ถ้าไม่อย่างนั้นแม่จะไม่ให้กินขนม
[gin kâao hâi mòt gàwn, tâa mâi yàang nán mâe jà mâi hâi gin kanǒm]
Finish your dish first.…