"Frank flew to Moscow last week. -> Frank said he had flown to Moscow the previous week.
This is an example of reported speech, also known as indirect speech. We use reported speech when relating what someone else tells us to others. This reported speech worksheet goes over the most important changes required, as well as providing a 20 question worksheet for in-class or self-study use (answers are provided on the following page). Other worksheets include:
Present Simple WorksheetPresent Continuous WorksheetPast Simple WorksheetPresent Perfect Worksheet"
Reported Speech Worksheet
Reported Speech Worksheet: