Which "two-way" preposition generally governs the Accusative case?

unter

an

neben

über

The preposition that generally governs the Accusative case is "an." To determine this, you can refer to a grammar resource or a language textbook that explains the cases in German. In the case of prepositions, there are certain rules that dictate which case they require.

To find out which case a preposition requires, you can follow these steps:

1. Look for a comprehensive list of prepositions that govern specific cases.
2. Locate the preposition you want to know about, in this case, "unter," "an," "neben," and "über."
3. Check what case each preposition requires.
4. In this case, the preposition "an" generally governs the Accusative case.

By consulting a reliable grammar resource or textbook, you can find a list of prepositions and their corresponding cases, and it will help you navigate the German language more effectively.