條件句
Ever 用在 if 所引導的條件句時，ever 可緊接在 if 之後或位在句子的中間位置，亦即位在主詞和主動詞之間 (即普通動詞之前)、語氣助動詞或第一個助動詞之後，或當主動詞用的 BE 動詞之後。例如：
- If ever you’re in Taipei, do give me a call. (如果你有到台北，一定要打個電話給我)
= If you’re ever in Taipei, do give me a call. - If you ever see Robert, give him my kind regards. (如果你見到羅伯特，請代我向他致以問候之意)
- If Tony had ever worked harder, he would have earned more money. (如果東尼以前更努力工作的話，他會賺更多的錢)
- I seldom/rarely, if ever, watch television. (我難得看電視)
- His wife seldom/rarely, if ever, does any cleaning. (他太太難得打掃一次)
－ seldom, if ever 或 rarely, if ever = probably never (難得；可能從不)。 - Now there’s a great challenge, if ever there was one. (現在確實有一項重大的挑戰)
- That was a fine dinner if ever there was one! (那確實是一頓豐盛的晚餐！)
- It was a difficult job if ever there was one. (毋庸置疑地，那是一項艱難的工作)
- If ever there was an opportunity for you to see the president, this was it. (如果說有一個可以讓你見到總統的機會，那就是這個機會了)
－ if ever there was one/something 意為「(用來強調所說情況的真實性) 不容置疑，確實」。不管主句的時態為何，if ever there was one/something 中的 there was 為固定用語。