I've been waiting here for a whole hour.

我在这儿等了整整一个小时。

《牛津词典》

Mr. Liu has been waiting here for about five minutes.

刘先生已经在这里等了大约五分钟了。

youdao

He has been waiting here for a long time.

他在这儿等了许久。

《新英汉大辞典》

I've been waiting here for several hours, we've made announcements for her, but there's no sign of her.

BBC: A day at the Kumbh Mela festival

The young lady right here has been waiting for a while.

WHITEHOUSE: President Obama��s Town Hall in Cannon Falls, Minnesota

This gentleman right here has been waiting.

WHITEHOUSE: President Obama Closes Forum on Jobs and Economic Growth