わけない, 訳無い, 訳ない
Usually in kana
1. easy, simple
Expression, See わけがない・1, contraction of わけがない
2. there's no way that ...
こんなデカイのがチャリの荷台に乗るわけないだろ。
のです, んです
Expression, の and ん add emphasis
the expectation is that ..., the reason is that ..., the fact is that ..., the explanation is that ..., it is that ...
お借りした車の調子が悪いのですが。