It is time 後的定語從句用虛擬語氣
從句謂語通常用過去式表示現在或將來,有時也用過去進行時或“should+動詞原形”(較少見,且should不能省略),其意爲“(早)該乾某事了”。如:
I think it's time you went to bed. 我想你該睡覺了。
It's time we went [were going, should go]. 我們該走了。
I think it's time they were taught a lesson. 我想現在該給他們一點教訓了。
注:time前有時有about和high脩飾:
I think it's high time that she made up her mind. 我想她該拿定主意了。
與其他的虛擬結搆不同,該結搆不能在該用 was 時而用 were。如:
It's time I was in bed. 我該上牀睡了。(不用were)