Mistakes

An expert is someone who knows some of the worst mistakes that can be made in his field, and how to avoid them.

Every opinion is a mixture of truth and mistakes.

Teachers must get tired of rectifying the same mistakes over and over again in their students' papers.

James had a great fear of making mistakes in class and being reprimanded.

You continue making the same mistakes time after time.

You're forever making mistakes.

You must put these mistakes right.

Your composition is very good, and it has few mistakes.

Your composition is perfect except for a few mistakes.

Your composition is free from all grammatical mistakes.