It’s for medical terminology please help me

Let's take this problem by problem:
⇒ preoperative
⇒ Explanation: Preoperative references the time before a surgery
⇒ intraoperative
⇒ Explanation: Intraoperative references the time during a surgery
⇒ postoperative
⇒ Explanation: Postoperative references the time after a surgery
Answer: preoperative, intraoperative, postoperative (respectively)
Hope that helps!