Free Lesson!:)

I enjoy!-No
I enjoyed it!-Yes
I enjoyed the party!-Yes
I enjoyed the concert!-Yes
I enoyed dinner last night!-Yes
If you said "I enjoy!" to someone, they would be waiting for you to complete the sentence
since it is considered a sentence fragment only (part of a sentence)! And if you didn't
complete the sentences they would wonder what you were talking about!:)