Reported speech, a fundamental aspect of English grammar, involves conveying someone else's words or thoughts indirectly. It requires changes in pronouns, tenses, and sometimes word order. Now, consider the following statements:
I.In reported speech, the reporting verb can change from present tense to past tense when the reported statement is about a past event.
II.When reporting statements, modal verbs such as 'can' change to their past equivalents, such as 'could', to reflect the shift from direct to reported speech.
III.Reported speech often entails backshifting, where verb tenses shift back one tense in indirect speech compared to the original direct speech.
It is correct what is stated in: