* Read:
* Re- (meaning "again" or "back"): reread
* Pre- (meaning "before"): pre-read
* Mis- (meaning "wrongly"): misread
* Over- (meaning "too much"): overread
* Under- (meaning "not enough"): underread
* Tie:
* Un- (meaning "not"): untie
* Re- (meaning "again"): retie
* Over- (meaning "too much"): overtie (less common, but possible)
* Under- (meaning "not enough"): undertie (not commonly used)
Let me know if you'd like more examples or information about prefixes!