you can never tell in a sentence

Examples

1. You can never tell how much you will obtain.
2. You can never tell what this president will do,
3. You can never tell who'll be next.
4. Thing is, you can never tell when the bloody beasts will move.
5. You can never tell what will happen in politics.
6. You can never tell which is the top one.
7. You must always hope, because you can never tell what will happen.
8. You can never tell by appearances when it will cave in on you.
9. Around here, you can never tell your starting pitchers without a scorecard.
10. "You know, you can never tell with a play like that.