Question

dont stay up late,;his mother said change in to reported speech

Answer 1

That boy mother asked him not to stay up late

Answer 2

Indirect/Reported Speech refers to a dialogue being told to a third person/reporting what happened to a third person.

Example: He said, "I love this game." (Direct)

                He said that he loved that game. (Indirect)

In the above example, when writing in indirect/reported form, the sentence changes according to its tense. Also, modifications regarding certain words like 'this' changes to 'that', 'tomorrow' changes to 'the next day', 'will' changes to 'would', 'can' changes to 'could' and many other words will have to be made. Also, if the sentence contains an interrogation, then 'said' changes to 'asked'. Punctuation marks other than a full stop (.) cannot be used in indirect/reported speech.

"Don't stay up late", his mother said. (Direct)

His mother said not to stay up late. (Indirect)