第1个回答 2009-07-03
I remember I have seen him before, but I can not pick up the location.
第2个回答 2009-07-03
I've seen him a couple of years ago, but can't remember where I saw him.
第3个回答 2009-07-03
I remember that I have seen him ,but I can't remember where did I see him本回答被提问者采纳
第4个回答 2009-07-03
I remember (that) I have seen him several years ago,but I forget where I saw him.
第5个回答 2009-07-03
I remember I met with him few years ago, but I can't recall where.