see确实属于瞬间/终止性动词,但少数终止性动词的否定式可以和since 或for 引导的时间状语连用.因为终止性动词的否定表示的是一种可以延续的状态.例如:
I have heard from my friend in Africa for half a year.(错误)
I haven’t heard from my friend in Africa for half a year..(正确)
see确实属于瞬间/终止性动词,但少数终止性动词的否定式可以和since 或for 引导的时间状语连用.因为终止性动词的否定表示的是一种可以延续的状态.例如:
I have heard from my friend in Africa for half a year.(错误)
I haven’t heard from my friend in Africa for half a year..(正确)