Steven, could you please tell me where to find the word usage chart? Do you have to register as a user first? Is there a particular icon you have to click?
My mother (*1926) still uses Jiddish words and expressions which once abounded in German, particularly in the Berlin area, but which are now all but forgotten here: Mumpitz erzählen (to talk nonsense, to lie), Massel haben (be lucky), Zores mit jemandem haben (not to be on good terms with somebody). Also words which were (kind of) adopted from French, probably at the time when Napoleon's troops had occupied Berlin: blümerant (from bleu mourant, for: to feel slightly ill) and Fisimatenten/Sperenzchen machen (to make a fuss) (although whether the latter really come from French is debatable).
Using the preterite and the subjunctive also mark out your speech as old-fashioned. I recently read about a German teacher whose entire class of 16-year-olds accused him of having made up the form ihr tatet - that's how unfamiliar they were with it.
And a friend of mine told me that none of her university students knew the meaning of the word die Mahd (making hay), they thought it was a typo and was supposed to have been die Magd (obsolete word for female servant).
Wow, it is amazing that teenagers wouldn`t be familiar with „ihr tatet“, which sounds just standard to me.
As to LEO, You just have to download LEO (which has several languages, French, Spanish, and several others), then when you find a word you clink on the box for the word and it takes you to the DWDS (das Wortauskunftssystem zur deutschen Sprache in Geschichte und Gegenwart) for the word where you can see the frequency and usage charts (I don`t know if they have something similar for other languages) and the sources for the historic word use appears in published works, either newspapers or literature and publication dates, some even going back to the 1800s. You can then register for the site and it`s free and see more details.
I tend to make frequent use of the preterite, which we used to only call Das Imperfekt, and I always and regularly use the Konjunktiv II and ocassionally but not often Kunjuktiv I, and I don’t think anything of it. Occasionally I`ll use the Perfekt, and I don`t know why, but it seems a bit wordy too me, and I once always used Sie with everyone except children, and close friends. Now, it seems people everywhere are switching to du and seem to prefer it, which seems a bit strange to me (almost impolite in some cases) after they get to know you for even just a few minutes, which I don`t understand, but if they prefer that it`s okay.
It also seems that the Imperfekt is has a kind of North/South split to it, so you`ll heard a lot more of the Imperfekt in the North than South, with a couple of exceptions.
I was also wondering if you`ve noticed this phenomenon: If you heard Helmut Schmidt in his interview, he does this a lot. He`ll frequently say, „das kann ich nicht erinnern.“ He`ll just drop the reflexive with erinnern altogether. This seems to accord with Duden which states:
Erinnern:
„<ugs., bes. nordd. auch mit Akk.-Obj. u. ohne Reflexivpron.:> ich erinnere ihn gut;
das erinnere ich nicht.“
I`ve heard that before and occassionally drop the reflexive myself much of the time. I wonder if you`ve noticed that much. But I`m of course very familiar with the more common reflexive use with erinnern and fall back on using it a lot sort of unconsciously.
It seems the German language is getting slowly grammatically simplified. Having learned, the old fashioned style from teachers in 1980 who grew up in the Germany of the 20s, 30s and 40s, I suppose I just got used to their style of speaking, and writing, and as old-fashioned as it may seem, it sounds natural to me.