"I posted the letter", said the boy indirect speech
Answers
The given sentence in direct speech can be converted into indirect speech as shown below:
The boy said that he had posted the letter.
Explanation
It was a simple statement, so we joined the quoted speech with the reporting verb (said) with 'that'.
Pronoun 'I' was changed into 'he' because the subject was 'the boy'.
Since the reporting verb was in Past Tense, the tense of the direct speech was also changed into past tense.
The rule is the Simple Past tense in direct speech is converted into Past Perfect tense.
To change the voice of the letter, the position of the subject , which is the boy, and the position of action, that is posting the letter, have to be changed.
Initially the sentence was "I posted the letter, said the boy".
To change it to passive voice, the sentence to be formed will be " The boy said that the letter had been posted by him".