have i seen him before
我以前见过他吗
以上为机器翻译结果，长、整句建议使用 人工翻译 。
'Have I seen him before?' she asked.
“我以前见过他吗？”她问。
youdao
I have seen him before.
我以前曾经见到过他。
《新英汉大辞典》
He said. I don't believe him because I have seen him snap ropes before.
他说道，可是我不相信他所说的，因为我以前就见过他挣断过绳子。
He has a desire to improve on himself and I have never seen that desire in him before.
BBC
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