Which of these is NOT considered valuable consideration?

Valuable consideration refers to something of value that is exchanged to form a contract. In this context, consideration must be real and enforceable; it represents what each party gives up to the other.

Future promises without conditions do not meet the standard of valuable consideration because they lack commitment or obligation. A promise that is contingent upon future events is not enforceable because it does not involve an immediate exchange of value or something of definitive worth at the time the contract is formed. For consideration to be valuable, it should provide assurances that something tangible or concrete is being exchanged, rather than relying on uncertain future actions.

In contrast, a signed promissory note, money paid for goods, and a transfer of personal property all represent forms of value that can be exchanged between parties, thus establishing a binding agreement. These forms of consideration have underlying value that can be clearly recognized and enforced in legal terms, making them valid components of contractual agreements.