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- Teenage Pregnancy: How do I Know if I'm Pregnant? 如何知道是否已懷孕?
- I'm hanged if I know (ie I don't know at all) what to do. 我根本不知道該怎樣辦。
- I knew if I kept at it I should succeed. 我知道如果我堅持下去就會成功。
- If I know her number, just I can call up she. 要是我知道她的號碼，我就能給她打電話。
- If I know his name, I would tell you. 如果我知道他的名字，我就會告訴你了。
- I'll try if I know all the things I used to know. 如果我知道以前了解的我會試試。
- If I knew his address, I could write to him. 如果我知道他的住址，我會寫信給他。
- i'm...est if I know. 我根本不知道。
- If I know her number I could ring her up. 如果我知道她的號碼，我可能給她打電話。
- If I know her number,just I can call up she. 要是我知道她的號碼，我就能給她打電話。
- If I know his name,I will tell you. 如果我知道他的名字,我會告訴你了。
- I'm hanged if I know what to do. 我根本不知道該怎樣辦.
- How do I know if I am winning in my auction? 如何知道自己在拍賣中是否領先?
- How do I know if I have registered successfully? 如何知道自己已註冊成功?
- If I know her, she's making the best of it. 如果我沒有認錯她的話,她知道忍讓。
- How will I know if I have to pay inheritance tax? 我怎麼知道我是否必須繳遺產稅?
- If I knew English, I should be able to read these English books. 假如我懂英語，我就能讀這些英語書了。
- He makes me feel as if i know northing. 他讓我覺得自己好象什麼也不懂。
- I know I can achieve success if I keep on trying. 我知道,如果我不斷嘗試,我獲得成功的。
- I'm blest if I know! ie I don't know at all. 我要是知道就好了（我一點也不知道）。
