Learn Dutch: Hoe vaak gaan jullie uit? - How often do you go out?

Yes! Just like in English, you combine hoe (how) with the adverb of frequency vaak (often) to ask about frequency. You can also use this pattern with other words, like hoe lang (how long).

Why is the word uit at the very end of the sentence?

This comes from the separable verb uitgaan (to go out). When you conjugate a separable verb in a main clause or a question, the main part of the verb (gaan) takes the normal verb position, and the prefix (uit) gets kicked to the very end of the sentence.

Why does gaan come before jullie?

Because this is a question starting with a question phrase (Hoe vaak). In Dutch, the conjugated verb (gaan) must be in the second position. Since Hoe vaak acts as the first block of information, the verb comes immediately after it, followed by the subject (jullie).

Could I say Hoe vaak ga je uit? instead?

Yes, if you are asking just one person. The sentence here uses jullie because it is asking multiple people. If you use je or jij (singular you), the verb changes to ga, making it Hoe vaak ga je uit?