我想表达曾经的动作做主语，例如，我想说去美国（曾经去过）的经历对我来说是一笔财富，是Went to U.S. is an precious experience. 这里went to US做主语，went怎么加ing呢？求指导，thx！
went 后面不能加 ing ， 你可以用完成时： Having gone to the U.S. is a precious experience.
修正一下：having gone to 是指已经去了但还没回来，而 having been to 则是指曾去了且已经回来了，所以此处最好是用having been to the U.S. is a precious experience.
修正一下：having gone to 是指已经去了但还没回来，而 having been to 则是指曾去了且已经回来了，所以此处最好是用having been to the U.S. is a precious experience.
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第1个回答 2014-04-08
首先，Went本来就是go的过去式。只有动词才有这些变化。
其次，用表达动作的成分作主语，只能用动名词。所以应该说，
Going to U.S. is an precious experience.
但为强已发生，可用动名词的完成式。
Having gone to U.S. is an precious experience.本回答被提问者采纳
其次，用表达动作的成分作主语，只能用动名词。所以应该说，
Going to U.S. is an precious experience.
但为强已发生，可用动名词的完成式。
Having gone to U.S. is an precious experience.本回答被提问者采纳
第2个回答 2014-04-08
可以说：Having been to America is a precious treasure to me
