come early to ensure getting a good seat 中ensure为什么是+doing sth.??

Question

到底有没有ensure doing的形式？
有的话，请具体说一说用法以及哪些时候不能用。
若没有，那么请仔细解释一下
谢谢

Answer 1

ensure的用法
ensure
1. 保证;担保[O9][+that][+v-ing]
I can't ensure his being on time.
我不能保证他的准时。
I can't ensure that he will be there on time.
我不能担保他会及时到那儿。
This medicine will ensure you a good night's sleep.
这药将保证你一晚睡眠良好。
2. 使安全,保护[Q][(+from/against)]
These are safety devices to ensure workers against accidents.
这些安全设施是为了保护工人不出事故。

好像没有直接ensure doing sth 的

Answer 2

你好，ensure的意思是“保证;担保”
[+that][+v-ing]
给你写例句
I can't ensure his being on time.
我不能保证他的准时。
I can't ensure that he will be there on time.
我不能担保他会及时到那儿。
This medicine will ensure you a good night's sleep.
这药将保证你一晚睡眠良好。本回答被提问者采纳