Final answer:
To report the command 'Go out now!' given by a policeman, it becomes 'The policeman told me to go out immediately'. Imperative verbs change to the infinitive form and adverbs of time may change to reflect immediacy in reported speech.
Step-by-step explanation:
To change the direct command "Go out now!" into reported command, you need to follow the rules of indirect speech. The reported command would be: The policeman told me to go out immediately. In indirect commands, the exclamation mark is removed, and the imperative mood of the verb is changed to an infinitive form, often preceded by 'to'. The adverb 'now' often becomes 'immediately' or 'at once' in reported speech to reflect urgency. Also, note that the subject 'you' is implied in the direct command, but in reported speech, it becomes more specifically 'me' as the person being addressed.