be concerned that后面跟什么从句

后面跟宾语从句，例如：

1、Should I be concerned that you're out so late?我是不是应该关心你为什么这么晚还没回来

2、She was said to be concerned that her husband was being injured too often while playing basketball.据说米歇尔对她丈夫打篮球经常受伤感到关切。

3、But physicians should be concerned that we've not solved the problem of late stent thrombosis.但是内科医生应注意，我们还没有解决晚期支架血栓形成问题。