保证，是指保证人和债权人以书面形式订立约定，当债务人不履行债务时，保证人按照约定履行债务或者承担责任的行为。那么你知道保证用英语怎么说吗?下面来学习一下吧。
保证英语说法1：
guarantee
保证英语说法2：
sponsion
保证英语说法3：
warrant
保证英语例句：
我可以向你保证，你儿子在这里会很快乐的。
I can assure you that your son will be happy here.
你愿意当你弟弟的保证人吗?
Are you willing to stand surety for your brother?
这药保证能让你好好睡一觉。
This medicine will ensure you a good night's sleep.
医生们在努力保证早产婴儿成活方面热情很高。
The doctors were zealous in their efforts to ensure the survival of premature babies.
我向你保证。
I assure you.
雾天我们不能保证火车准时到达。
We cannot guarantee the punctual arrival of trains in fogy weather.
我们的工程技术和质量保证体系，保证您的满意。
Our engineering and quality assurance system guarantees your satisfaction.
银行得到了保证该项贷款协议的保证品。
The bank required collateral to securethe loan agreement.
国会设立了一个贷款保证委员会来监督保证贷款的执行。
Congress established a loan guarantee board to oversee the operation.
我向你保证我一定到那儿去。
I assure you I'll be there.
我可以向你保证这消息是可靠的。
I can assure you of the reliability of the information.
为了保证成功，我们必须要有一个周密的计划。
In order to ensure success we must have a complete and thorough plan.
游泳教练保证孩子们不会淹死。
The swim coach warrants the children from drowning.
我们保证把这项工作做好。
We ensure that the work shall be done in the right way.
我向你保证。
I assure you.
“是，”我向他保证。
"No," I assure him.
你用什么办法来保证可用性呢?
What do you do to ensure availability?
我可以向你保证这不是我的意图。
I assure you that is not my intention.
如果执意如此，我们无法保证其结果。
We cannot guarantee the results if you do that.
但是，我向你保证，你这样做是值得的。
But it is, I assure you, worth it.
我给你们我的保证，我不会容忍那样的事情发生。
So let me give you my assurance. I would never tolerate that.