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开始学习

问题		答案
Past simple 开始学习		Past simple is used to express a finished action that happened in the past It is composed of a subject and second form of a verb, which is quite often irregular
Affirmative 开始学习		It is composed of subject and second form of a verb I walked 15 kilometers yesterday!
I ____ (learn) to play tennis 10 years ago. 开始学习		I learned to play tennis 10 years ago. If a verb is regular, it is followed by -ed ending
Negative 开始学习		It is composed of subject, auxiliary verb did, adverb not and infinitive form of a verb The contraction from "did not" is "didn't" He did not walk 15 kilometers yesterday.
He ____ (not learn) to play tennis 10 years ago. 开始学习		He didn't learn to play tennis 10 years ago. A verb after "did" is always in an infinitive form
Yes/No Question 开始学习		It is composed of did, subject and first form of a verb Did you walk 15 kilometers yesterday?
____ (you learn) to play tennis 10 years ago? 开始学习		Did you learn to play tennis 10 years ago? A verb after "did" is always in an infinitive form

Past simple