Preverb
句首助動詞, 前動詞(即移至句子第一個位置上的助動詞)
??? 情景例句
I don't know.
我不知道。
Do you have any hobbies?
你有什么愛好嗎？
A farm worker, who stayed up all night claimed to have seen a figure cutting corn in the moonlight.
有一個徹夜未眠的雇工還聲稱他看見一個人影在月光下收割莊稼。