-ed / - ing

Adjectives

English grammar is confusing."

"I was confused by what I read."

-ing for descriptions

We use -ing adjectives to describe things. "It is boring."

-ed for feelings and emotions

We use -ed for our how we or others feel. "I am bored."

( https://www.ecenglish.com/learnenglish/lessons/adjectives-ed-or-ing/)