I already know. I've been learning Japanese for a while, from fluent native Japanese speakers, what is "manyogana." I know Hiragana, Katakana and Kanji. There aren't other scripts. This man shows on his profile that he is near fluent put this is what I noticed. Let me explain: He says I should use Watashi wa Abe to moushimasu. I have never seen his and I get my resources from JapanesePod101.com. Lessons are taught mostly by native speakers. I'm not saying that you have to be a native speakers to be right, but I digress. The "to" in that correction is a particle that indicates the person with whom an action is completed or the "companion." Why would this be in a sentence when you are introducing only yourself. You forget I am speaking formally sense I have never met any of you. Think of that... He then says 17 no Amerikajin desu. "no" shows possession. Obviously, my name belongs to me. It would translate to, " I'm Seventeens's American". Sai means " I am". Remember I am speaking formally, so "desu" comes after. I looked up Moushimasu. It is very formal(humble) keigo (respect language). That was not my intention to be very formal. It is possible to be too polite in Japanese. I looked up Manyogana, here is what I found: Manyogana became obsolete in modern Japan, being supplanted by the systems of katakana and hiragana which derived from it-- katakana characters consist of radicals or small components of manyogana, while hiragana are stylized cursive versions of the corresponding manyogana. Like I thought, I don't need this. It is crucial to know the right level of polite when you speak, which even the Japanese mess up. That is my explanation, from a beginner Japanese learner. You have 4 bars on Japanese but, respectfully, both of you missed this completely. Again, I am below conversation level; I trust JapanesePod101.com. I am however am skeptical about this communities' speakers unless they are Professional speakers(with experience for 10 years).

I am curious to what were those fundamental grammar mistakes that Patric made were? Also I don't think Kana means what you think it means, Kana includes both Hiragana and Katakana, and I am not even going to mention learning the third script manyogana. So I think the suggestion of learning kana first is really good(if you already know hiragana, then katakana is your next step).

I found some fundamental mistakes with your grammer. Long story short, I can't take you seriously(Patrick).

I do know kana, I could have written it in Kana (kind of, I don't know Katakana). I don't know kanji, which I know takes a lot longer and shouldn't be rushed. I learned a lot, thx both of you. I just now remember "watashi" can be omitted.