Explanation
Use "as ... as" to say two things are equal. Put an adjective or an adverb in the middle.
For example, "My room is as big as yours." Here "My room" is the thing we talk about, "is" links the subject to the description, "as big as" shows the same size, and "yours" is the thing we compare it with. In Japanese, this idea is often said with "〜と同じくらい" or "〜ほど". Use "not as ... as" when one thing is weaker, smaller, or less good than the other.
「as ... as」は、2つのものが同じくらいだと言いたいときに使います。真ん中に形容詞か副詞を入れます。
たとえば、"My room is as big as yours." では、"My room" が話題、"is" が主語と説明をつなぐ言葉、"as big as" が「同じくらいの大きさ」を表す部分、"yours" が比べる相手です。日本語では「〜と同じくらい」「〜ほど」で表すことが多いです。片方のほうが小さい・弱い・よくないときは "not as ... as" を使います。
Examples
- My room is as big as yours. 私の部屋はあなたの部屋と同じくらい大きいです。
- Today is as hot as yesterday. 今日は昨日と同じくらい暑いです。
- Is this train as fast as the bus? この電車はバスと同じくらい速いですか。
- This book is not as heavy as that one. この本はあの本ほど重くありません。
- She runs as quickly as her brother. 彼女は兄と同じくらい速く走ります。
- Our hotel is as close to the station as yours. 私たちのホテルはあなたたちのホテルと同じくらい駅に近いです。
Common Mistakes
Japanese learners often add "than" after "as ... as" because Japanese comparison uses "より".
Wrong: "My room is as big than yours."
Right: "My room is as big as yours."
Also, do not forget the first "as".
Wrong: "My room is big as yours."
Right: "My room is as big as yours."
日本語の比較で「より」を使うため、"as ... as" のあとに "than" を入れてしまうことがよくあります。
誤り: "My room is as big than yours."
正しくは "My room is as big as yours."
また、最初の "as" を落としてしまうミスも多いです。
誤り: "My room is big as yours."
正しくは "My room is as big as yours."