for certain in a sentence

1. I don't know for certain

2. I have patience for certain things.

3. Transparent only for certain colors

4. How he was – is for certain unknown.

5. Of EU funding for certain seed types

6. Possible for certain car categories.

7. They were looking for certain things.

8. Hepatitis A (only for certain groups)

9. Gluten is only bad for certain people.

10. Company Vehicles for certain positions

11. I think it’s great for certain things.

12. Appetite for certain foods and alcohol.

13. We all have ability for certain things.

14. “There were rewards for certain things.

15. Only available for certain sensor types.

16. A: Yes but for certain people obviously.

17. Layout changes for certain recipients or

18. Targeting for certain ads is restricted.

19. necessary for certain chemical reactions

20. For certainly, their number was immense.