过去分词
中文翻译：可能曾经是
同义词：
['might have been', 'could have been', 'might have been']
例句：
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1. I might havebeen a better student if I had studied harder.
如果我更努力学习，我可能会成为一个更好的学生。
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2. She might have been happy if she had received the promotion.
如果她得到了晋升，她本可以很幸福。
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3. The team might have been successful if they had followed their plan.
如果队伍遵循了他们的计划，他们本可以成功。