I never should have come in here.

I never should have come in here. (I never should have come in here)

意思：

👉 我当初根本不应该进来的。
👉 我真不该来到这里。

这里最重要的是：

should have + 过去分词

表示对过去的事情感到后悔，意思是：

本来应该……，但实际上没有……

例如：

I should have called you.
我本来应该给你打电话的。

I shouldn't have said that.
我当时不应该说那句话。

所以：

I never should have come in here.

其中：

come in here = 进到这里来

should have come in here = 本来应该进来

加上 never：

never should have come in here

= 根本就不应该进来

因此整句：

I never should have come in here.

就是一种很强的后悔：

“我当初就不该进来！”

注意和 I shouldn't have... 的区别

这两个意思非常接近：

I shouldn't have come in here.
我不应该进来的。

I never should have come in here.
我根本就不应该进来的。

never 让语气更强，强调完全不应该。

这个句型你可以直接记下来：

I never should have + 过去分词

= 我当初根本不应该……

例如：

I never should have trusted him.
我当初根本不应该相信他。

I never should have said yes.
我当初根本不应该答应。