英语常用时态及其对应的被动语态
●一般现在时
I am 19 this year.
I learn English every day.
（被动）English is learnt (by me) every day.
She learns English every day.
●一般过去时（用动词的过去式）
I was 18 last year.
I learnt English last year.
（被动）English was learnt (by me) last year.
●现在进行时
I am learning English now.
（被动）English is being learnt (by me) now.
●过去进行时
I was learning English at 9 last night.
（被动）English was being learnt (by me) at 9 last night.
●一般将来时
I will be 20 next year.
I will learn English next year.
i am me（被动）English will be learnt (by me) next year.
●现在完成时（用动词的过去分词）
I have been 12 before.
I have learnt English before.
（被动）English has been learnt (by me) before.
●过去完成时（用动词的过去分词）
I had been 12 before.
I had learnt English before.
（被动）English had been learnt (by me) before.
●现在完成进行时
I have been learning English for 10 years. 我一直已经学了10年的英语了。
●过去完成进行时
I had been learning English for 10 years. 我之前一直已经学了10年的英语了。
●将来完成时（用动词的过去分词）
I will have learnt 10 English words by the end of 2020. 到2020年末我将会已经学了10个单词。
注1：一般将来时的其它表示方式
I will be 20 next year. 我明年会满20岁。
I am going to be 20 next year. 我明年会满20岁。
I am about to be 20. 我即将满20岁。
I will learn English next year. 我明年会学英语。
I am going to learn English next year. 我明年打算学英语。
I am about to learn English. 我即将学英语。
I’m going. 我要走了。
注2：应掌握每种时态（语态）的否定和疑问变换。