You would really need to specify in which context you wanted to say it in.
If said context happens to be a little too M18+ for WikiAnswers, then I would guess that the word you're looking for is "motto", with a little pause on the 't'.
ie. Moh-tt-oh
"Hard" as in "difficult" would be 'muzukashii' in Japanese.
Tough, as in difficult, would be 'muzukashii' in Japanese, written: 難しい
難しい (muzukashii) or 困難な (konnan na) are two ways of saying difficult in Japanese.
Casually: 日本語は君の思考より難しい。 (Nihon-go wa kimi no shikou yori muzukashii.)
Politely: 日本語はあなたの思考より難しいです。 (Nihon-go wa anata no shikou yori muzukashii desu.)
i am not means in Japanese is:-It is difficult
This is difficult. The simplest answer is "ni" but Japanese uses it in different ways. For example, in Japanese you don't say "I listen to music" but "I listen music."
If you are referring to a measure of difficulty, you may say 'muzukashii' (difficult) or 'fukuzatsu' (complex/complicated).
"Nanitte" is difficult to translate out of context, but it could mean:"What I was saying was...""If you were asking what I was doing, I was...""What'd you say?"
how to say "editor" in japanese
To say old Japanese illustrations in Japanese, you say "Mukashi no Nihon no irasuto".
we say Nakagawa if we want to say inside in Japanese.
フライドポテト is how you say it in japanese'
メロン is how you say melon in Japanese.
To say tennis in Japanese.........テニス
Terekineshisu is the word for telekinesis in the Japanese language.
To say blue fish in Japanese you say ブルーフィッシュ.