`1.` Janet revealed she would take part in the competition.

`2.` My friends told me they wouldn't start the project in May.

`3.` The investors said they were going to/would start the project soon.

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`-` Cấu trúc câu tường thuật: S `+` said to O/told O (that) `+` S `+` V(lùi thì)

`-` Lùi thì: Will `->` Would `/` Won't/Will not `->` Wouldn't

`-` TLG: am/is/are `+` going to `->` TLG trong quá khứ: was/were `+` going to

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`1.` The director told the farmers that they couldn't offer them the credit.

`2.` Mike said he had to pay the bills before Saturday.

`3.` The teacher told the students that they had to answer the questions in class.

`4.` Grandpa told us that it might rain in the evening.

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`-` Cấu trúc câu tường thuật: S `+` said to O/told O (that) `+` S `+` V(lùi thì)

`-` Lùi thì: Can/Can't `->` Could/Couldn't

`+` Must `->` Had to

`+` Have to `->` Had to

`+` May `->` Might