Course 4 will take approximately 4 - 5 hours to complete, but you don't have to do it all at once. It is divided into seven parts, which you can return to even after you have started another Course. This allows you to break up the grammar lessons. Pause Points throughout the parts allow you to stop and return to the same point. The parts are:

• Using the active voice
• Removing wordy expressions
• Injecting a personal tone
• Ensuring sentence parts are parallel
• Improving punctuation
• Forming abbreviations and inserting numbers in narrative