Tom saat kaçta varması gerektiğini kesin olarak bilmiyordu.
- Tom didn't know for certain what time he should arrive.
Tom yeni bilgisayarın ne kadara mal olacağını kesin olarak bilmiyordu.
- Tom didn't know for certain how much the new computer would cost.
For certain.
... >>Doctorow: So, it makes a certain amount of sense to me. I think you're describing ...
... like, a favorite song of mine from a certain area. And, you know, it's really fun to do, ...