I have arrived here since 3 years ago.

问题描述:

I have arrived here since 3 years ago.
arrive是瞬间动词,since 3 years ago是表示瞬时还是延续的时间?

since 3 years ago是延续的时间,所以不能用arrive,应用been here.原句改过来就是I have been here since 3 years ago.