Things I really, really need to remember.
AKKUSATIVDATIV DurchAus FürAußer GegenBei OhneMit UmNach BisSeit Von Zu These prepositions always trigger these cases. Adding endings depending on the case may also be necessary. (Dat+zu=zur Schule)
Anything dealing with motion is Akkusativ. Anything that is not moving or static, is Dativ.
Wohin? An Auf Hinter In Neben Über Unter Vor Zwischen Wo? An Auf Hinter In Neben Über Unter Vor Zwischen Notice how theyre both the same? Well its because it all depends on the verb. Sorry!
Wohin? Legen Gehen Setzen Steigen Setzte Wo? Sitzen Stehen Liegen Sein-War Warten The little differences of letters of these verbs will change the entire meaning of a sentence. To have something lying down is different from laying something down.
When making references to a cause, not a sentient being, use a da-compound. If something cannot think, you must use a da- compound.