If you want to improve your grammar, you may find it helpful to analyse how sentences are structured. FoxType does the work for you, visually breaking down your sentences so you can see how each word functions. Tools like Grammarly can help fix grammatical mistakes as you type them, but if you're curious about the structure of your sentence to begin with, FoxType can help. Simply enter your sentence in the toolbar, and the tool breaks it down: nouns, direct objects and all.
FoxType is primarily a web tool that helps you write more concise emails, but this is a separate tool that you can use for free. Check it out at the link below.