I have a degree in English literature, I can correctly use English grammar, and I will do an excellent job of proofreading.
I'll also proofread it for grammar errors.
I've worked as a language translator and proofreader in the past.
I promise to complete my work as quickly and effectively as I can. At the university where I receive my education, I major in English literature.
I'll get to work on the project as soon as I get the order and make sure there are no grammatical errors.
Once I've finished it, you'll be able to see that I did an excellent job of completing this task and living up to your expectations.
I appreciate it.