Learn Dutch: Praten de mannen niet te hard? - Are the men not talking too loudly?

In a yes/no question, the verb comes first, followed by the subject (Praten de mannen). The word niet generally comes after the subject. In this sentence, it is placed right before te hard because it specifically negates the idea of them talking "too loudly".

Where is the word for "are" in this sentence?

Dutch doesn't usually use a separate word for "are" or "is" when talking about actions happening right now. The single verb Praten means both "talk" and "are talking".

Doesn't hard mean "hard" in English? Why is it translated as "loudly"?

In Dutch, hard can mean "hard" (like a solid object) or "fast" (like driving fast). But when it is used to describe sound, voices, or music, it means "loud" or "loudly".

What is the purpose of te before hard?

The word te means "too" when you are talking about an excessive amount of something. Just like te groot means "too big", te hard means "too loudly".