“我学钢琴学了三年”用英语怎么说?过去时还是一般现在时呢……?动作不是延续到现在比如我现在15岁,而学钢琴是从5岁学到8岁这样……

6

I studied piano for three years

I have learned piano for three years.

是一般完成时态，I have learnt the piano for three years

三年里一直不间断的在学且现在也在学就是i have been learning piano for 3 years
现在不学了 曾经学了三年就是 I had learned piano for 3 years 强调过去完成某事 或是 i learned piano for 3 years 只是表示曾经 做过某事

I have learnt the piano for three years.

I have learnt the piano for three years. 用的应该是现在完成时，而不是现在完成进行时。推荐答案不准确。

现在完成进行时表示的是现在还在学习钢琴，并且将一直持续下去。而你说你只是从5岁到8岁，所以用现在完成时即可。

我学钢琴学了三年：I learned piano for three years.（一般过去时）
这样说就表示动作不是延续到现在的.
如果要表示动作延续到现在——I've been learning piano for three years.（现在进行时）
♥ 自己认真回答的,应该是正确的,

【用过去完成时】
I had learned playing piano for three years.