Really so …!: adjective + quá trời, quá chừng, ghê

You know quá after an adjective: Ngon quá! Saigon speech has stronger ways to react. Quá trời is the everyday one: Đông quá trời! It's so crowded! Mắc quá trời! That's way too expensive! It can follow a verb too: Hôm qua em ăn quá trời. I ate so much yesterday.

Quá chừng works the same way. Ghê after an adjective is lighter and friendlier, often admiring: Đẹp ghê! How pretty! Giỏi ghê! Well done, you! Don't confuse it with ghê on its own, which means "gross" or "scary": Ghê quá! Luôn at the end makes any of these stronger still: Ngon quá trời luôn!

In Hà Nội people mostly say quá, and younger people also use kinh (from kinh khủng, terrible) for "so very". Làm sao after an adjective, as in Đẹp làm sao!, is for songs and poems; you'll read it more than you hear it.

Compare vậy after an adjective, Nóng vậy!, which reacts to something you didn't expect. And ơi là, as in đẹp ơi là đẹp, repeats the adjective for a playful "so, so …".