Press the grey Free Check button. If you see an underlined spelling error, style suggestion, or grammar suggestion in your text, click on them to see more options. Apply corrections where you need them. Then, the system will automatically check grammar usage and spelling and give you the final verdict. Lastly, make the suggested changes to your text before you send it on its way. Make a final read-through to make sure that you’ve caught everything, and that you agree with the changes.