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我知道couldn't是can't的过去式。那么不应该know也成为knew吗?这是母语人士常犯的语法错误吗?

teacher

母语人士的回答

Rebecca

是的,这是对的!这是母语人士在口语中常犯的错误之一。这些错误经常发生是因为讲母语的人在讲话时没有遵循语法规则。 “ I couldn t sleep last night because I knew that it was over between us. “是正确的。之间的差can “ t和couldn ” t为: Can ' t是一个速记cannot 。 Cannot “ Cannot ”。例子: I cannot whistle very well. (我不擅长吹口哨。)例如: She cannot swim very well. (她是不是游泳好。) Couldn ' t是could not的缩写。与Cannot , couldn ' t是过去时态。 Couldn “ t Couldn不能”。例子: t swim until I took swimming lessons. I couldn t swim until I took swimming lessons. (我不会游泳,直到我把课。)例: I couldn不能t go to the bar until I turned 21. (我不能t go to the bar until I turned 21. 21)

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04/18

通过测验完成表达式!

昨晚无法入睡,因为我知道我们之间已经结束了。