1. am/is –was 动词“是”
2. are—were 动词“是”
3. become—became 变为，变成
4. begin—began 开始
5. buy—bought 买
6. bring—brought 拿来，带来
7. beat—beat 敲打，搅拌
8. blow—blew 吹，吹动
9. break—broke 打
小学英语动词的过去式不规则变化表.docx