https://youtu.be/WIf-pHcCah4
Credit – Stacy Henderson 8th Grade Reading
When a pronoun is the object of a preposition, use an object pronoun and not a subject pronoun.
The burly man sang a lullaby to Karen. The burly man sang a lullaby to her. Sometimes a preposition will have a compound object consisting of a noun and a pronoun. Remember to use an object pronoun in a compound object. I sold tickets to Carrie and Seana. I sold tickets to Carrie and her. Alberto agreed with Willie and me.