Which sentence below uses a comma correctly? I love to play video games, but they are hard. I love, to play video games but they are hard. I love to play video games but they are hard. I love to play video, games, but, they are hard.
The first sentence ⇒ "I love to play video games, but they are hard." is correct.
There are two independent clauses: I love to play video games + they are hard. These independent clauses are joined together with a comma but, which is the correct way to join independent clauses together in a sentence.