AB + ablative, AD + accusative. Does it apply to other similar verbs?

1. What verbs take the ablative?
2. Does ad take the accusative?
3. What is the difference between in ablative and in accusative?

What verbs take the ablative?

There are five deponent verbs which take their object in the ablative case, rather than the accusative case. These are the PUFF-V, potior, utor, fruor, fungor, and vēscor, and this ablative is an ablative of means.

Does ad take the accusative?

With the gerund and the gerundive, the preposition ad is used with the accusative to express purpose. And in many prepositional phrases with the accusative, the idea of purpose is more prominent than the idea of motion: ad salutem = "for safety, for the purpose of creating safety" etc.

What is the difference between in ablative and in accusative?

“In” with the accusative means into, onto, against... it has the idea of forward motion, whereas “in” with the ablative denotes simply position, in or on. “Sub” can also take both cases.