日本語でstirと言う言葉の使い方 例えば、ボウルを使う時です。

How would I say something is more useful in Japanese? I do know how to say something like 電車と 車と どっちの方が 早い？ But what if I wanted to use a な adjective at the end like 便利 instead. Would I need to conjugate? Or would you just not say it like that?

Ex. スパチュラと トングと どっちの方が 便利ですか。

How many verbs are godan verbs and how many are ichidan? I know all of the irregular verbs.6/12/18Just want to know the approximate size of each of them.

What are the differances that distingush the shakuhachi from the Chinese xiao? Do they mainly come down to sound, the shape of the instrument?

What is the story behind katakana being primarily used for loanwords and technical terms nowadays?

Is there any difference between うち and いえ when concerning the meaning for house (家)? Are they interchangeable? Or are they used in particular situations?

What do いんです and なんです do to the meaning of a sentence when tacked onto other words. Examples:

今日は佐藤さんの誕生日なんです。

大きいけどとても軽いんです。

(Are these just plain forms people use in every conversation and are just different from other words? Is this just to ease pronouncement of words? Or does it change the fundamental meaning of the sentance?

What is the difference between いんです and なんです when joining them to other words?

What does ざんねんでした mean in Japanese. I know it is in past tense.