What is a subplot in Harry Potter and the Goblet of Fire?

Answer 1

Some subplots that are not related to the central plot of Goblet of Fire include:

-Hermione starting the student organization, S.P.E.W., to help promote house-elf rights.

-Rita Skeeter disguising herself as a beetle to eavesdrop on the students and staff.

-Fred and George creating their own joke products, Weasley Wizard Wheezes.

-Fred and George placing a bet on the tournament winner with Ludo Bagman, and getting paid in Leprechaun gold.

-Bertha Jorkins' murder.

-Barty Crouch Jr. escaping Azkaban and placing the Imperius Curse on his father.

-Sirius Black going into hiding in a cave near Hogsmeade.

-Hagrid being ashamed of his half-giant status when it becomes published.

-Winky the House-Elf getting fired by her master, Mr. Crouch, and working in the Hogwarts kitchens.

-Percy Weasley getting promoted as Mr. Crouch's personal assistant.

-The Irish defeating the Bulgarians at the Quidditch World Cup.

-The developing love triangle between Ron, Hermione, and Victor.

Answer 2

Yes. Some of the subplots in Harry Potter and the Philosopher's Stone are Rubeus Hagrid's dragon, Harry joining the Quidditch team and Harry developing a friendship with Ron and Hermione.