小学四年级英语一般过去式的造句如下：

肯定句

She often came to help us in those days.

I was an English teacher one year ago.

I bought a yellow dress yesterday afternoon.

否定句

I didn't know you like coffee.

I wasn't an English teacher one year ago.

We didn't have a good time yesterday.

一般疑问句

Did I do homework？

Were you absent from school two days ago？

Did you do your best to do it？

特殊疑问句

What did you do during the last summer vacation？

Why weren't you at school this morning？

这些例句涵盖了肯定句、否定句、一般疑问句和特殊疑问句的基本结构，适合小学四年级学生学习和使用。