Answer: Internal flashback, External flashback and Flash-forward
Step-by-step explanation:
Internal flashback: This type of flashback occurs within a character's mind, and it is used to reveal the character's thoughts, memories, or emotions. The reader is given insight into the character's past experiences and how they have shaped their current behavior and attitudes.
External flashback: This type of flashback occurs outside of a character's mind, and it is used to provide background information about the story or to reveal events that occurred before the story's main action. The reader is given information about the past events that led up to the present situation.
Flash-forward: This type of flashback is used to show events that will happen in the future. It creates a sense of anticipation and may be used to reveal the consequences of the characters' actions.
It's worth noting that, although the term is "flashback", flash-forward is also a literary device that shows the future, it's a counterpart of the flashback and is used to create a sense of anticipation.