As a noun:
* The election was a sham, with widespread voter fraud.
* The peace treaty was just a sham, designed to buy time for the warring factions.
* Their marriage was a sham from the start, built on lies and deceit.
As an adjective:
* The company's claims of sustainability were sham, as they continued to pollute the environment.
* The investigation was a sham, designed to protect the guilty.
* The entire system is sham, riddled with corruption and injustice.
As a verb:
* They shamed the company into taking responsibility for its environmental damage.
* He was shamed publicly for his dishonest behavior.
* The protesters shamed the government into addressing their concerns.
As a phrase:
* The whole thing was a sham and a farce.
* Don't be fooled by the sham of democracy in this country.
Remember: "Sham" can be a powerful word, so use it carefully. It's important to use it accurately and appropriately to avoid misinterpretations or offense.