I'm trying to understand one thing about this sentence. Can anyone tell me the mistake? "Do you enjoyed sports?" For what I know, that sentence is in the past tense. Shouldn't that be a correct sentence?
In all do-support constructions, and in all auxiliary verb (helper verb) constructions, the tense is indicated by the auxiliary verb (do, have, is) and not by the main verb (enjoy, enjoyed, enjoying)
For questions, negations, and the emphatic use of "do" in the present tense the structure is always "do/does/did" + base-form
I didn't enjoy sports. (past tense negation)
He does enjoy sports. (present tense, emphatic "do")
Do we enjoy sports? (present tense question)
Did they enjoy sports? (past tense question)
So for your sentence the only grammatically correct form is
Did you enjoy sports?
Neither are correct.
"Do you enjoy sports?" is rather vague but correct English.
It is difficult to find a correct sentence with the combination of enjoyed and sports.
You could have enjoyed a specific sport when at college, but to have enjoyed sports is rather vague and I would argue incorrect. Basically the sentences are not complete.
I enjoyed several sports during my time at college but I only excelled in track events.