英語是一個需要長期學習、循序漸進的科目。多做題目的過程中，注意詞匯積累，擴大詞匯量，增強短語、固定搭配的用法記憶。小編
上海成考網為大家整理了一套英語語法誤用，讓我們來看看吧！
1、中文：我要是你，我不會那么做。
(誤)I shouldn"t do that if I was you.
(正)I shouldn"t do that if I were you.(表示與現在事實相反的虛擬語氣不能用was，只能用were.)
2、中文：要是我父親現在在這里，他會告訴我該做什么。
(誤)If my father were here now，he will tell me what to do.
(正)If my father were here now，he would tell me what to do.(表示與現在事實相反的虛擬語氣中，主句的助動詞只能用would，might等過去時。)[環球網校成人高考頻道整理虛擬語氣誤用]
3、中文：要是我知道她的電話號碼，我就會給她打電話了。
(誤)If I knew her telephone number，I would have called her.
(正)If I had known her telephone number，I would have called her.(表示與過去事實相反的虛擬語氣中，條件從句的動詞要用過去完成時。)
4、中文：要是昨天沒下雨她也許會來。
(誤)If it had not rained yesterday，he might come.
(正)If it had not rained yesterday，he might have come.(表示與過去事實相反的虛擬語氣中，主句的動詞要用助動詞的過去時might，could等+HAVE+過去分詞。)
5、中文：我不認為我會失敗，但要是我失敗了，我會再努力。
(誤)I don"t think that I shall fail.But if I failed，I would try again.
(正)I don"t think that I shall fail.But if I should fail，I would try again.(表示與將來事實相反的虛擬語氣中，條件從句的動詞用should加原形動詞。)
