Follow the link and practise the reported speech:
http://www.englisch-hilfen.de/en/exercises_list/reported.htm
Watch this video to understand how verbs change in the reported speech:
In this video you will be explained how we report modal verbs:
Reporting conditional sentences is not difficult. Watch and learn:
It's really important to report Yes/No questions:
And Wh-questions:
We can also report some questions using an infinitive:
Finally, we have to know how to to report commands: