This is off topic and I hope that you take it in the spirit offered. I can never decide if it’s rude or helpful but the intent is to be helpful.

Teach is one of a handful of words in English that doesn’t follow the normal rules for it’s past tense form. The past tense for teach is taught. I honestly can’t tell you how to identify which words use a different form for their past tense. I think it’s just something that you learn through experience.

https://www.esl-lounge.com/reference/grammar-reference-most-common-irregular-verb-list.php

https://en.wikipedia.org/wiki/The_Anarchist_Cookbook

That’s legal in the US so a guide to internet piracy certainly would be.

If you want to be overly cautious you can write it as a guide to using the exact same process to download media that’s already passed into the public domain. Nothing illegal about downloading things that aren’t protected by copyright. That the same process can be used to download pirated media is just a coincidence.

I don’t know anything about relevant laws in the EU, Czech Republic, or Germany.

The US has one of the oldest living dialects of English. Linguists argue whether Appalachian English is a mostly preserved dialect of 16th century Elizabethan English or an unusually conservative dialect of 18th century Colonial English.

Y’ont folks ta git back ta talkin right have em talk hillbilly.

Humans don’t really have structural carbs. I think we’re a salad.

We put our save potatoes in a burlap sack and buried them below the frost line. They came out in the spring almost exactly like they went in in the fall.