Is the following sentence still a run-on sentence/or is there grammar errors...Grammar quizzes can be tough, there is a lot to learn and it is hard to remember. I find that it gets easier with practice.

Thank you in advance for your help.

There is still a run on sentence in there.

How can you rewrite the first sentence?

The sentence you provided is not a run-on sentence, and there are no grammar errors in it. It is a well-constructed sentence with proper punctuation and clear structure.

To identify whether a sentence is a run-on or not, you should first understand what a run-on sentence is. A run-on sentence occurs when two or more independent clauses (complete thoughts) are joined together without proper punctuation or conjunction. In other words, it is a sentence that is too long or improperly joined.

Let's break down the sentence you provided:

"Grammar quizzes can be tough, there is a lot to learn and it is hard to remember. I find that it gets easier with practice."

This sentence consists of two independent clauses:

1. "Grammar quizzes can be tough."
2. "I find that it gets easier with practice."

These clauses are separated by a period, which indicates two separate sentences. Therefore, your sentence is not a run-on sentence.

Additionally, when it comes to grammar errors, there are none in the sentence you provided. The sentence is grammatically correct and effectively communicates its intended meaning.