请解释为什么用having spent ,这是什么时态After having spent whole mornings on t_其他解答

请解释为什么用having spent ,这是什么时态
After having spent whole mornings on the river,I always go home with an empty bag.

人气：494 ℃　时间：2020-01-27 22:00:23

解答

为现在完成时态.这里强调该动作已经完成,故有了现在完成时.
因为这里的"after"为介词,后面若跟动词需+ing,所以"have"就变成"having"了.