I'm currently focusing on German and Japanese and I am a native English speaker, but I am having problems understanding cases and tenses. I've looked around a bit, but all I have seen so far seems focused towards English language learners.
I guess what I am looking for some kind of resource that helps native English speakers understand cases and tenses.
Is this a worthless endeavor? Should I just pick them up as I go along? Should I focus on the cases & tenses in my target languages? TIA


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