There are no errors in these sentences; although the bottom one holds a subtle suggestion that you are not sorry for ALL the things you said, only some of them. I think the middle one sounds the most sincere to me. It sounds like you are apologizing only for those things that offended. The first sentence sounds like you didn’t say one single thing you are not sorry for. You were wrong in everything that you said and apologizing for it all.

It means “no matter what size”, or “not even of different size”. In this sentence it means no craters are found before this. No small craters, no large craters, no craters at all were found before this one.

Both are correct. It does change the context just a tiny bit. “You don’t appear on the list” is more conclusive. It means unequivocally that your name is not there. Another way to say it would be “Your are not on the list”. “You don’t appear to be on the list” sounds a little more like the speaker is just finding this information out. It means they do not see the name on the list, likely as they are searching for it. Another way to word this might be “I do not see your name on the list”

Hello. I am a native English speaker and a grammar nerd. 1) The word rather would not be a good fit in the first example sentence. We would use the term “to avoid”. A good revision of your example sentence would be, “He walked in order to avoid getting stuck in traffic”. More casually it could be stated, “We walked so he wouldn’t get stuck in traffic” In the second example sentence, the word rather works. It would be correct to say, “People should be concerned about themselves, rather than meddling in other people’s affairs. 2) It seems there should NOT be an apostrophe in Picasso. An apostrophe signifies possession, not plural. Such as, “Those memoirs are Picasso’s”. So it would be correct to say, “These paintings are all Picassos”

Learning French

It's been 3 weeks since I started studying French. I’ve always wanted to learn a new language besides English so I decided to study French, because I think it's a beautiful language.
So far I'm very excited to learn it. I think when you already know a second language, the process of learning the next one becomes easier, because you may already know some shortcuts you can take.
I began studying French with a helpful video lesson which approachs some interesting topics about the language.
I've been reading basic things in French and the words I dont't know yet, I look up in the dictionary then I translate the words into English, later on I try to create sentences with the new words that I have learned on my notebook here on Italki.
I'm very grateful for those people who has corrected my sentences here on Italki. Thank you very much. It has helped a lot.
I hope I could find someone to practice French with, in exchange I can help with portuguese.

That's it, thank you much.