一般動詞の過去形は（規則動詞の場合）ふつうは原形に ed か d をつける call → called talk → talked visit → visited live → lived like → liked

一般動詞の過去形は（規則動詞の場合）原形の語尾が「子音字 + y 」なら，y を i にかえて ed をつける study → studies cry → cries でも y の前が母音だから play → played enjoy → enjoyed

一般動詞の過去形は（規則動詞の場合）原形の語尾が「短母音 + 子音字」なら，子音字を重ねて ed をつける stop → stopped drop → dropped

一般動詞の過去形（不規則動詞の場合）は何回も言っておぼえる たとえば give→gave 与える go→went 行く see→saw 見る take→took 持っていく write→wrote 書く come→came 来る get→got 得る have→had 持つ say→said 言う buy→bought 買う teach→taught 教える

彼女は昨日サッカーをしました。

• She plays soccer yesterday.
• She played soccer yesterday.
• She plaied soccer yesterday.

彼らは昨日公園に行きました。

• They goed to the park yesterday.
• They go to the park yesterday.
• They went to the park yesterday.

健は昨晩数学を勉強しました。

• Ken studies math last night.
• Ken studied math last night.
• Ken study math last night.

雨がやんだ。

• The rain stoped.
• The rain stopped.

私は公園でネコを見ました。

• I seeed a cat in the park.
• I sees a cat in the park.
• I saw a cat in the park.

久美はバスで学校に行きました。

• Kumi takes the bus to school.
• Kumi takeed the bus to school.
• Kumi took the bus to school.

健は昨日うちに来ました。

• Ken comes to my house yesterday.
• Ken comed to my house yesterday.
• Ken came to my house yesterday.

彼女はテストで良い点を取りました。

• She got a good grade on the test.
• She geted a good grade on the test.
• She gets a good grade on the test.

彼女は「ありがとう」と言った。

• She says, "Thank you."
• She sayed, "Thank you."
• She said, "Thank you."

一般動詞の過去形の否定文では did not を動詞の前につけ，動詞を原形にする 一般動詞の過去形の疑問文では Did を文の一番動詞の前につけ，動詞を原形にする 答える時も did を使う

妹は昨夜ピアノをひきませんでした。

• My sister did not go to the park last night.
• My sister did not play tennis last night.
• My sister did not play the piano last night.

久美は昨夜英語を勉強しましたか。はい，しました。いいえ，しませんでした。

• Did Kumi studied English yesterday?—Yes, she did. / No, she did not.
• Did Kumi study English yesterday?—Yes, she did. / No, she did not.
• Does Kumi study English yesterday?—Yes, she does. / No, she does not.

あなたは昨日何をしましたか。 What did you do yesterday?

次の文を否定文に Ken came to my house yesterday. → Ken ( ) ( ) ( ) to my house yesterday.

• did not come

次の文を疑問文にして，Yes で答える（文頭は大文字で） Kumi took the bus to school. → ( ) Kumi ( ) the bus to school？—Yes, she ( ).

• Did take did

• Did, take, did

次の文で yesterday を尋ねる疑問文に（文頭は大文字で） She played soccer yesterday.（彼女は昨日サッカーをしました。） → ( ) ( ) she ( ) soccer?

• When did play

• When did, play