She knows ten times German words as many as I do.

英訳のおかしなところを正してください。

彼女は私の10倍近く多くのドイツ語の単語を知っている。
She knows ten times German words as many as I do.

答え
German words as many asをas many German words as
にする

She knows ten times as many German words as I do.

X倍のYが目的語となる場合
X times as many Y asとなる

Our soccer club has three times as many members as yours.
私たちのサッカークラブにはあなた方のクラブの3倍の部員がいる。