How to Use "forewarn" with Example Sentences

1. Let me forewarn you that my cat is not very friendly .
2. But pregnant crickets , it appears , do have the ability to forewarn .
3. Perhaps he should forewarn customers with a little sign .
4. Forewarn a person that it may be dangerous to swim here .
5. The anonymous report 's contributors did not contact or forewarn huabao ahead of publication and said readers " should assume that certain contributors to this report ...... as well as our clients have a short position in the stock " .