Explanation
Use irregular past forms when you talk about a finished action in the past. Some verbs do not add "-ed".
For example, "I went to the library yesterday." In this sentence, "I" is the subject, "went" is the irregular past form of "go", "to the library" shows the place, and "yesterday" shows the time. Japanese often shows past time with one ending on the verb, but English changes the verb itself. So you must learn each irregular form, like "go / went", "buy / bought", and "see / saw".
過去に終わった行動を言うときは、不規則動詞の過去形を使います。こうした動詞は、語尾に "-ed" を付けません。
例えば "I went to the library yesterday." では、"I" が主語、"went" が "go" の不規則な過去形、"to the library" が場所、"yesterday" が時を表します。日本語は動詞の語尾で過去を表すことが多いですが、英語は動詞の形そのものを変えます。そのため、"go / went"、"buy / bought"、"see / saw" のように、一つずつ覚える必要があります。
Examples
- I went to the library yesterday. 私は昨日、図書館に行きました。
- She bought a new phone last week. 彼女は先週、新しいスマホを買いました。
- We saw a rainbow after the rain. 私たちは雨のあとに虹を見ました。
- Did you eat dinner yet? もう夕食を食べましたか。
- He didn't come to the party. 彼はパーティーに来ませんでした。
- They made coffee and sat outside. 彼らはコーヒーを入れて、外に座りました。
Common Mistakes
Japanese learners often add "-ed" to an irregular verb or keep the base form after a past-time word.
Wrong: "I goed to school yesterday."
Right: "I went to school yesterday."
Wrong: "Yesterday I go to school."
Right: "Yesterday I went to school."
日本人学習者は、不規則動詞に "-ed" を付けてしまったり、過去の話なのに原形のまま使ってしまったりしがちです。
誤り: "I goed to school yesterday."
正しくは "I went to school yesterday."
誤り: "Yesterday I go to school."
正しくは "Yesterday I went to school."