My friend often makes promissory statements, but he always fails to keep those ludicrous promises that he makes.

I received a promissory note from the government that promised me ten thousand dollars, though it is likely a scam.

There are all sorts of fraudulent websites on the internet with promissory statements of free money, but anyone that is not completely gullible sees through them.

For someone that makes the same promissory comment to his friends nearly every day, Joe has still failed to become the most popular boy in school.

Many infomercials make promissory claims about the high quality of their product, yet few people ever experience that quality when they actually buy it.