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Common Mistakes: "Could of" or "Could have"? Could've / Would've / Shoul...
source: English Teacher Jon 2011年10月18日
Do you say "I should of listened to my mother?" or "I should have listened to my mother?" Even native English speakers make this very common mistake, but it's really easy to learn which is correct, and why it's correct, so watch this lesson and find out! Test your understanding with a free quiz at http://www.engvid.com/could-of-or-cou...
# relevant grammar videos: modals