句型三:

If … were going to + 動詞 …, … would be + 現在分詞 …
… would be + 現在分詞 … if … were going to + 動詞 …

用法:

句型三的未來非事實條件句乃句型二的變化句型,同樣可用來談論未來虛構的情況。注意:句型三與句型二只有 if 子句不同。英語母語人士係使用句型三來強調這種條件句是一種計畫或預測,與 “be going to" 是用來表示計畫或預測的情況一樣。

例句:

  • If I were going to go to Fiji next week, I would be taking my scuba diving gear with me. (如果下週我要去斐濟,我會帶著浮潛裝備) - 下週我不去斐濟,所以我不會帶著浮潛裝備。
  • If I were not going to visit my grandfather tomorrow, I would help you do housework. (如果明天我不去探望我祖父,我會幫你做家事) - 明天我要去探望我祖父。

僅能使用 If

未來非事實條件句只能使用 if,不可用 when,因為它談論的是與未來事實相反的虛構情況。

例句:

  • I would buy that computer tomorrow if it were cheaper. (如果那部電腦比較便宜,明天我會把它買下來) (正)
  • I would buy that computer tomorrow when it were cheaper. (誤)

在未來非事實條件句中,除了 would 外,還可使用 should, could, might 這三個情態助動詞。

例句:

  • If I went to Saudi Arabia next year, I could learn Arabic. Unfortunately, that’s not possible. (如果明年我去沙烏地阿拉伯,我就可以學阿拉伯語。可惜的是,那是不可能的)
  • If I didn’t have to work tonight, I could go to the fitness center. (如果今晚我不必工作,我就可以上健身中心)

未來事實條件句 vs. 未來非事實條件句

為了協助讀者瞭解未來事實條件句與未來非事實條件句之間的差異。試比較下面的例句。

例句:

  • If you help me move tomorrow, I will buy you lunch. (如果明天你幫我搬家,我就請你吃午餐) (未來事實條件句) - 我不知道你是否能幫我。
  • If you helped me move tomorrow, I would buy you lunch. (如果明天你幫我搬家,我就請你吃午餐) (未來非事實條件句) - 你不能幫我或是你不想幫我。

 

資料來源:http://englishhome.org/future-conditionals.html

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