I have hought the piano for six years. 哪里错了?

I have bought the piano for six years.
buy是点动词,不能跟一段时间.
I have been having/owning the piano for six years.
It is six years since I bought the piano.
The pinao have been mine for six years.
都对.

I have had the piano for six years.
bought（买）是瞬间性动词，不能与for+一段时间的状语连用

是bought不是hought,buy是结束性动词，表示的一瞬间的事，后面不能跟一段时间。应该改成I have had the piano for 6 years .

piano前没有the