I'll try, but I don't know for sure whether I'll be able to go to the cinema tomorrow or not.
- Spróbuję, ale nie wiem na pewno, czy będę mógł iść jutro do kina, czy nie.
I don't know how many years ago it was, but it was certainly more than three.
- Nie wiem, ile to było lat temu, ale na pewno więcej niż trzy.
Oh yes! I will certainly come with you!
- Tak, na pewno z tobą pojadę!
Are you sure that you want to give this away?
- Na pewno chcesz się tego pozbyć?
I can't remember what Timothy looks like, but I'm sure I'll know him by sight.
- Nie pamiętam, jak wygląda Timothy, ale na pewno znam go z widzenia.