The three main stages of the essay writing process are prewriting, drafting, and revising.
During the rewriting stage, two modifications that can be done to the essay are editing and proofreading. Editing involves reviewing and revising the content of the essay for clarity, coherence, and organization. This may include adding or removing information, rewording sentences, and ensuring that the ideas flow smoothly. Proofreading, on the other hand, involves checking the essay for spelling, punctuation, and grammatical errors to ensure that it is error-free and easy to read.