see to it that...结构分析。

see 在这里表示“一定做到；务必保证”之意，that 从句是“一定做到；务必保证”的内容。

几个注意点：

1. to it 可以省略，但that 不可以省略。

2. see 一般用原形（祈使句或将来时），不用saw 或have seen 等其他时态。跟make sure，be sure 用法基本相同。

3. that 从句多用一般现在时，偶用将来时。

4. that 从句应该是宾语从句，这从省略it 后即可看出。

例句：

I'll see (to it) that it gets round that you've arrived.  

我一定保证让大家知道你到了。

来自柯林斯例句

See (to it) that you take care of him.  

一定要照顾好他。

来自柯林斯例句

We must see (to it) that there is no gap in our defence.  

我们必须确保我们的防御没有漏洞。

来自《简明英汉词典》

See (to it) that the work is done.

注意把工作做好。

I'll (see to it ) that we are back before 4.

我来想法使我们在4点以前回来。

I will see (to it) that everything is ready in time.

我会保证任何事情都会及时准备就绪。