把You should listen to me carefully.改為祈使句是：

Listen to me carefully.

祈使句是用來表示命令、請求、建議、勸告等的句子。祈使句通常省略主語you.

祈使句有三種形式：

1.Do型:

Listen to me carefully.這種類型的否定是直接在句首加Don't.

2.Be型:

Be careful。

這種類型的否定是直接在句首加Don't

3.Let型:

Let him go home.

這種類型的否定有兩種，即： 1.直接在句首加Don't.

Don't let him go home.

2.Let him not go home.