一般过去时是初中时态题的绝对主力：听力问昨天干了什么，写作记叙过去的事，单选考过去式拼写。丢分集中在两点——不规则动词背不全，did 后面忘了还原动词。
规则变化的四条拼写规则
| 规则 | 原形 | 过去式 |
|---|---|---|
| 一般加 ed | work / play / clean | worked / played / cleaned |
| 以 e 结尾加 d | live / like / hope | lived / liked / hoped |
| 辅音字母加 y 结尾，变 y 为 i 加 ed | study / carry / cry | studied / carried / cried |
| 重读闭音节双写末尾字母加 ed | stop / plan / shop | stopped / planned / shopped |
不规则动词必背清单（节选高频）
| 原形 | 过去式 | 原形 | 过去式 |
|---|---|---|---|
| go | went | have / has | had |
| do | did | see | saw |
| eat | ate | buy | bought |
| take | took | come | came |
| get | got | make | made |
| write | wrote | read（读作 /red/） | read |
标志词：yesterday、last week、two days ago、in 2020、just now。疑问句和否定句用 did / didn't：Did you go shopping yesterday? I didn't watch TV last night.
易错点：did 之后的动词必须还原
过去式的责任由 did 一个人承担后，主要动词要回原形——Did you went 和 didn't went 都是错的，正确写法是 Did you go、didn't go。句型转换题最常挖这个坑：把 She went home 变否定句，写成 She didn't went home 就丢分。自查口诀：一句最多一个过去式，有了 did、didn't，后面的动词立刻检查是否原形。另外 read 的过去式拼写不变但读音变 /red/，听力里靠时态语境分辨。