I´m not really sure about this but...

Here:

http://www.japan-activator.com/en/lesso ... icle/id/28

In this sentence



I think the word "Nippon" is wrong.

Must be

ぼくはもうにっぽんにいない。

Thank you

PD:

Same mistake here

http://www.japan-activator.com/en/lesso ... cle/id/151

Also in the Ja Sensei App.

I can´t find any example in the web i´m afraid. "Nippon" is always writed in kanji, so i´m not really sure about this, but, if with que MS IME you write

"NIPON" -> にポン　no one of the options shows "日本"

BTW, i´m currently translating all the grammar section to spanish, it must take a while, but when is finish i hope must be usefull

In fact, the word "Japan" is 日本.
But it gives hiragana: にほん.
Then there is the foreign version that gives katakana: ニッポン.

No mistakes here, 日本 can be pronounced にほん or にっぽん. The former is used orally most of the time.

Here's an Japanese newspaper article talking about that if you can read Japanese easily:
http://www.nikkei.com/article/DGXBZO376 ... 1C1000000/