1. 表示一直持續的動作
Mary has been ill for three days.
瑪麗病了三天了。
I have lived in the city since 1998.
自從1998年以來我一直住在這座城市。
I have been here since I moved here with my family.
自從和家人一起搬到這里,我就一直住這兒。
Everyone has been a part of a group since he was born.
每個人自出生后就已經成為群體的一部分。
2. 現在完成時的否定句式have/has+not
I have not yet copied the important file.
我還沒有備份這個重要的文件。
He hasn't planned to travel in Australia.
他還沒計劃去澳大利亞旅行。
You haven't heard of the problem from public.
你還沒有從公眾那里聽到這個問題。
I haven't taken up the job because of some reasons.
由于一些原因我還沒有接受這項工作。
3. have/has提前的一般疑問式
Have they cancelled the gathering meeting?
他們已經取消了聚會嗎?
Ha Jane gone back home to fetch the tools?
簡已經回家去拿工具了嗎?
Have you found all the ways we can use?
你已經找出所有我們能用的方法了嗎?
Have you pointed out the related problem?
你們已經指出相關的問題了嗎?
4. 現在完成時的時間狀語
We have remained to be part of the club since last year.
我們自去年以來就一直是這個俱樂部的成員。
He has been here waiting for you for one hour.
他一直在這里等你,已經一個小時了。
He has studied in China for three years.
他已經在中國學習三年了。
He has remained in the national team since 2004.
自從2004年以來,他一直在國家隊。
adj. 相關的,有親屬關系的