I would definitely expect to hear "The indigenous Brazilian Kayapo people" and "the indigenous American people" but I want to clarify a few things for your sake: 1.) in America we usually don't use the word "indigenous" to refer to our indigenous people (this is purely out of historical development) but how we refer to them is still somewhat controversial. I say Native American specifically because I think it is more accurate than American Indian. But there are plenty of Native Americans who do not like to be called Native American and prefer American Indian. I rarely hear someone refer to them as Indians without a modifier. And under no circumstance should you say "injun." That is offensive these days. For more information, see [this wikipedia][1] 2. Adjective order in English is not only complex, but almost impossible to memorize outright. First, it's not an absolutely known thing: there are varying lists. Second, it may sound slightly off to an English ear, but you will never ever ever be faulted for it. It is much more useful to work on your English in general and not try to hone in on adjective order. That said, if you're a masochist, [here you go][2]. [1]: https://en.wikipedia.org/wiki/Native_American_name_controversy. [2]: https://english.stackexchange.com/a/56874

You sound fantastic and I'm sure a lot of Americans would love your accent so don't worry about improving it further. It sounds almost like Continental Spanish (though I see in your profile you're Argentine), for which there is very little prejudice in the states (it's unfortunate that Central American and Mexican accents get some prejudice in the states, but at least you shouldn't have to worry about that). "There are very important points to take into account" we wouldn't quite say it like this. "There are some very important things you have to take into account" might be more apropos. "If you run away and later on the police finds out" isn't quite grammatically correct. It should be "and later on the police find out" without the s. This is a tricky thing with the third person singular in English and actually varies somewhat from region to region and so you might want to take this into account depending on who you want to sound like: > Aside from spelling and vocabulary, there are certain grammar differences between British and American English. For instance, in American English, collective nouns are considered singular (e.g. The band is playing). In contrast, collective nouns can be either singular or plural in British English, although the plural form is most often used (e.g. The band are playing). So I can say definitively that in AmEng we do not say "The police finds out" because police is a compound noun. I am unsure in British English how they would say it but I suspect they would say it like an American in this situation. A Brit can clarify this for you. You split "useful" into "use full" which sounds like a speech error. Could be because you're reading. "You keep thinking about that" we would say "You keep thinking about it" here. I'm nitpicking for the sake of your future improvement. You sound fully fluent. Keep up the good work!

We would say "I get really sad for it" if we're talking about a person or animal. In other words, we sympathize with the person or animal. We would say "I get really sad about it" if we're talking about a situation that makes us sad. But also, we put sometimes at the end, like Rob did: "I get really sad for it sometimes." "I get really sad about it sometimes."

"Roads? We're we're going, we don't need roads." https://www.youtube.com/watch?v=G3AfIvJBcGo

There are three uses of "How" in the way you're thinking: 1.) "How" + adjective (question of intensity) 2.) "How much" + uncountable noun (question of quantity) 3.) "How many" + countable noun (question of number) They work differently.