How do you write indirect statements when translating into Latin?

The rule for indirect statements in latin is nice and simple - you have to remember to put the subject in the accusative, and the verb in the infinitive. You have to include the subject of the indirect statement, even if it is the same as the subject of the introductory verb. 

The last thing you have to think about is the tense of the infinitive. Here you have to think of what the original words spoken by the person were; and you use that tense of the infinitive. Remember to make the future active and perfect passive infinitives agree with the accusative subject.