I had a hard time knowing when to use «ότι» or «που» when I wanted to say “that.” Then I learned a few phrases like «χαίρομαι που» and «συγγνώμη που», but I still made tons of mistakes.

Then I found this video from Linguatree titled, “After this video, you won’t make this mistake again”. After 6 minutes, my problems with «που» and «ότι» were solved!

Thank you Linguatree!