When we tell people what another person said or thought, we often use reported speech or indirect speech. To do that, we need to change verb tenses (present, past, etc.) and pronouns (I, you, my, your, etc.) if the time and speaker are different. For example, present tenses become past, I becomes he or she, and my becomes his or her, etc.
We often leave out that after reporting verbs like say, think, etc.
The most common verbs we use in reported speech are say and tell. We must pay attention here. We say tell somebody something and say something (to somebody).

When a person said something in the past, and now we tell somebody what that person said, the time is different, and for this reason, the verb tenses change. Look at a summary of these changes.

There are adverbs or expressions of time and place that change when we report what someone says. Here you have a list.
We use the normal order of words in reported questions: subject + verb. We don’t use an auxiliary verb like do or did.
When we report an order or instruction, we use the form ask or tell someone to do something.
In reported or indirect speech, we must also pay attention to the use of pronouns. When a person tells us something, he or she uses the first person (I, me, my, we, us, our) to talk about himself or herself and the second person (you, your) to talk about us, the person listening. But when we tell someone else what that person said, we are going to use the third person (he, she, his, her, etc.) to talk about the speaker and the first person (I, me, my) to talk about ourselves, the listener.
Link nội dung: https://chodichvu.vn/she-told-me-that-she-a65396.html