請問:

1/ 在reported speech「she said in the past 3 months」 中，「 in the past 3 months」是否要轉換？就如「yesterday」要轉為「the day before」一樣。

2/ 「單位樓下的機舖很夜關門」我知道是The game centre downstairs closes late. 若我想用否定，即「機舖並非夜關門」是否簡單用The game centre downstairs is not closed late into the night. 呢？