You wouldn't use either of those words in those ways. I can re-word those statements for you so that it will sound more natural. 1)You are my best friend. - the word "my" is what's known as a "possessive", and is the possessive of the word "me". A possessive indicates ownership, origin, or possession (to have). 2)Water is essential. - While it's not grammatically incorrect to say "water is essential to/for us" (both are technically correct), it's not necessary to say who water is essential to, because water is essential to everyone. This sort of statement isn't something that anyone would ever need to say, unless an alien who didn't need water came down from space... :p` 3)This is impressive. - It isn't necessary to say "to me" because it is implied that you are impressed when you are the one saying it. Alternatively, you could have also said "that is impressive". I hope this has helped you! :)

Differences between English and Japanese

English is quite different from Japanese. English is written in the Roman alphabet, however, Japanese is written in two different syllabaries, Hiragana and Katakana, as well as characters called Kanji. Moreover, grammar is also different. For example, the Verb comes after the subject in English, like this: Subject / Verb / (Adjective) / Object / (Adverb). In contrast, objective comes after subject in Japanese, like this: Subject / (Adjective) / Object / (Adverb) / Verb. It's interesting.

 

 

I understood everything that you were trying to say, which is good, so I just made some minor changes to help you improve your writing.

 

You should start always start a paragraph with the noun that you are discussing (English), instead of a pronoun (it's). This makes sure that the reader knows exactly what you're talking about. Alternatively, you could have also started your paragraph with "Japanese is quite different from English".

 

I corrected "alphabet" to "Roman alphabet" because "alphabet" is a bit vague and can refer to any alphabet, while "Roman alphabet" is more specific.

 

I also changed "types of languages" to "syllabaries".

A syllabary is a set of written characters representing syllables and (in some languages or stages of writing) serving the purpose of an alphabet.

The word syllabary is not a common word, and most English speaking people will probably be unfamiliar with it's meaning, but it more accurately describes what you would call hiragana and katakana in English.

 

I hope this helps you.