The main function of the interrogative adverbs is to introduce "question-word" questions. They stand at the beginning of a sentence.
They are categorized according to their meaning and belong to the aforementioned adverbial groups (adverbs of time, cause, manner and place).
| Examples | |
| interrogative adverbs of time | wann, wie lange, wie oft etc. |
| Examples | |
| interrogative adverbs of cause | warum, weshalb, weswegen, wieso etc. |
| Examples | |
| interrogative adverbs of manner | wie etc. |
| Examples | |
| interrogative adverbs of place | wo, wohin, woher etc. |
| Examples | |
| interrogative prepositional adverbs | worüber, wofür, wonach etc. |