I learned ____(play) the violin when i was eight years old .

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/05/22 08:12:41

I learned ____(play) the violin when i was eight years old .
这里的PLAY为什么不变成PLAYED而变成TO PLAY呢

to play
to play 是不定式,有名词性质,所以可以做learn 的宾语,而played 则没有,不可以作宾语
再问：那么有learned表示过去式，play为什么还要变TO PLAY ，一个句子中有俩个动词过去时态，不是都要变过去时的么？
再答：你要从句子结构去看： I（主语） learned（谓语）to learn the violin (不定式作宾语）你可能没学过不定式？不定式是to+ 动词原形

I learned ____(play) the violin when i was eight years old . I saw her play the violin when i was eight I saw her .（play）the violin when I was eight.She became a .. i was seven years old when i learned to play basketball 对sev When I Was Eight Years Old (英语作文) I was eight years old when our neighbors across the hall got stared to play the violin when he was five years old 的同义句 When Mozart was five years old,he could play the violin.（改为同 When he was five years old he began to play the violin 同义句 i learned to play the piano from 7 years old to 13years old When I was five years old, I could play the piano well.的同义句 1.I started to play the piano when I was six years old.(改为同义