I appreciate the responses and I understand the importance of keeping a private key secure and secret. However, I think my question may not have been fully clear.
To clarify my question: Is there a way to maintain ownership of a private key even when you intend to reveal it to someone else?
For example, let’s say my private key is 0101010101010101010101010101010101010101010101010101010101010101, and I choose to disclose this key to someone else. Given that I'm willingly revealing the private key, is there a method or technique that would allow me to maintain control or ownership over that key and any future funds associated with it? Or is it simply impossible to preserve ownership?
NO. You must not share your private key with anyone, no matter what. Maybe you've heard the phrase 'Not your keys, not your coins.' There's another one for you: 'I know your keys, now your coins are mine'

Although there is a method to prove the owner ship of a particular wallet (if your looking to provide someone proof of funds etc.) You can prove ownership of cryptocurrencies by signing a message with your private key, which creates a cryptographic proof without revealing the key itself. The signed message can then be verified using the public key to confirm ownership.
You will find some useful information here :
https://bitcointalk.org/index.php?topic=990345.msg10775520#msg10775520