having been + 过去分词 可不可以做后置定语啊

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不可以的把======以下答案可供参考======
供参考答案1:
可以作非限制性定语，相当于一个非限制性定语从句。如：
The task, having been finished on time at last(=which had been finished on time at last,) , received wonderful ments from experts.那项任务终于被准时完成，得到专家们的好评。