It is raining cats and dogs.
> The sentence is correct.
If you don't eat this, you have no more dinner and you will be hungry.
> If you don't eat this, you can't eat anything else for dinner and you will be hungry.
Yesterday, the policeman cought the murderer red-handed.
> Yesterday, the policeman caught the murderer red-handed.
You've came just in time.
> The sentence is correct.
Apologize to Annie, or I'll give you a dose of your own medicine.
> The sentence is correct.