i guarantee i will not die.
The builder guarantees that his houses will be very strong, withstanding a flood !
i was guaranteed that the car would last at least a year
I can guarantee you that. Indeed you can use guarantee in a sentence.
the guarantee of my mobile ended months ago.
Do you mean "Guarantee" ...?? Guarantee: I guarantee you this Microwave will last approximately 10 years.
I guarantee this is a correct answer!
I guarantee you that it is possible
I guarantee that I will deliver the package by Saturday.
"I can guarantee your success in this event," said Tom's Father.
There are companies of them, who guarantee to cure anything, and skilfully mulct the sick of their last penny.
I can guarantee that this will be an epic adventure. Her new tools came with a lifetime guarantee.
I expressed my satisfaction with the service I received at the restaurant by leaving a generous tip for the waiter.
To vouch for someone means you are prepared to guarantee them or support their record. I can only vouch for the accuracy of my own observations.
The correct spelling is "guarantee".