If you have problems with your grammar or general writing styles I can proofread your work and edit it so it sounds/reads better. If there are other parts of your assignment that you need help with such as paraphrasing or structure I can help with that as well.
I can also check if your sources are referenced properly (as long as you tell me what format it is meant to be in).
I studied at an IB school so my English is more than sufficient and I used to regularly proofread classmates' works just because it is a tedious and boring task. It can also just be hard to judge yourself since you wrote it.