had是什么句型

是过去完成时，例如：

1、We've had one or two problems ─ nothing serious.我们有一些问题，不过没什么大不了的。

2、I had some idea of what the job would be like.我对于这份工作有了一些了解。

3、His family have been a very positive influence on him.他的家庭对他有十分良好的影响。