Everyone, everything, always: ai cũng, gì cũng, lúc nào cũng

A question word followed by cũng means "every-" or "any-": Ai cũng biết chị Lan. Everyone knows Lan. Món nào ở đây cũng ngon. Every dish here is good. Cũng goes straight before the verb or describing word, and the question word goes somewhere in front of it.

That means the question word moves. When it's the thing someone does something to, it comes to the front, before the person: Món nào em cũng thích. I like every dish. Time and place work the same way: Lúc nào ảnh cũng trễ. He's always late. Ở Sài Gòn, chỗ nào cũng có quán cà phê. In Saigon there are cafés everywhere. In Hà Nội, "always" is also bao giờ cũng.

With được (fine) after it, this is how you say "anything's fine": Ăn gì cũng được. Đi đâu cũng được, wherever you like.

In a có … không question the same words mean "any" (có ai … không?, anyone?), and with không before the verb they mean "no-": không ai biết, nobody knows. For a firmer "any … at all", bất cứ comes later.