四年级英语下册中，学生通常会学习到一些动词的过去式。以下是一些常见的动词及其过去式的例子：
1. play - played
2. like - liked
3. go - went
4. read - read
5. write - wrote
6. swim - swam
7. fly - flew
8. jump - jumped
9. run - ran
10. walk - walked
此外，还有一些不规则变化的动词过去式需要特别记忆，例如：
was / am - were
buy - bought
fall off - fell off
go - went
carry - carried
do - did
这些动词的过去式用于描述过去发生的动作或状态。在学习时，学生可以通过造句来巩固这些动词的用法。例如：
I went to a concert yesterday. （昨天我去听音乐会了。）
She played the piano last night. （她昨晚弹钢琴了。）
希望这些例子能帮助你理解四年级英语下册中动词过去式的用法。