We use the adverbsurelyto express a degree of certainty. It does not express as much certainty asdefinitelyorcertainly. When we usesurely, we are hoping that our listener will agree with us:
Lisa willsurelyfind a solution to the problem.(I want you to agree with me that Lisa will find a solution.)
Surelythis is against the law.(I want you to agree with me that it is against the law.)
It’ssurelyquicker if you have a computer. | It’scertainlyquicker if you have a computer. |
I think that it is quicker if you have a computer and I want you to agree. | I am certain that it is quicker if you have a computer. |
We can usesurely, especially in negative question forms, to show surprise:
Surelyyou’re not going to take two weeks off work?(I am surprised that you’re going to take two weeks off.)
Surelyshe’s not interested in a job like that?(I am surprised that she is interested in a job like that.)