提问非谓语的过去完成时不用had吗？ 过去完成时一定要加助动词had吗
\u8fc7\u53bb\u5b8c\u6210\u65f6\u52a0\u4e0d\u52a0had\u8fc7\u53bb\u5b8c\u6210\u65f6\u7684\u7684\u6784\u6210\u662f\uff1ahad
+
\u8fc7\u53bb\u5206\u8bcd
☞
♧\u624b\u5de5\u7ffb\u8bd1☀\u5c0a\u91cd\u52b3\u52a8☀\u6b22\u8fce\u63d0\u95ee☀\u611f\u8c22\u91c7\u7eb3♧
☜
\u662f\u7684\uff0c\u8fc7\u53bb\u5b8c\u6210\u65f6\u4e00\u5b9a\u8981\u52a0\u52a9\u52a8\u8bcdhad\u3002
\u3010\u539f\u56e0\u3011\u8fc7\u53bb\u5b8c\u6210\u65f6\u7684\u8c13\u8bed\u52a8\u8bcd\u7ed3\u6784\u5c31\u662f\uff1a\u52a9\u52a8\u8bcdhad+\u52a8\u8bcd\u7684\u8fc7\u53bb\u5206\u8bcd
\u3010\u77e5\u8bc6\u94fe\u63a5\u3011\u8fc7\u53bb\u5b8c\u6210\u65f6\uff08past perfect tense\uff09\u8868\u793a\u5728\u8fc7\u53bb\u67d0\u4e00\u65f6\u95f4\u6216\u52a8\u4f5c\u4e4b\u524d\u5df2\u7ecf\u53d1\u751f\u6216\u5b8c\u6210\u4e86\u7684\u52a8\u4f5c\u6216\u72b6\u6001\uff0c\u4e3a\u516b\u5927\u65f6\u6001\u4e4b\u4e00\u3002\u5b83\u8868\u793a\u53e5\u5b50\u4e2d\u63cf\u8ff0\u7684\u52a8\u4f5c\u53d1\u751f\u5728\u201c\u8fc7\u53bb\u7684\u8fc7\u53bb\u201d\u3002
\u3010\u4f8b\u5b50\u3011When I got there, the bus had aready left.\u6211\u5230\u90a3\u91cc\u7684\u65f6\u5019\uff0c\u8f66\u5df2\u7ecf\u5f00\u8d70\u4e86\u3002
非谓语动词也有完成时的概念，而非谓语动词的完成时，包括动词不定式的完成式，动名词的完成式和现在分词的完成式，它们都表示动作发生在谓语动词所表示的动作之前。
不定式的完成式是to have加过去分词，被动语态是to have been加过去分词，动名词的完成式和现在分词的完成式都是having加过去分词，被动语态是having been加过去分词。
非谓语动词没有过去完成时这种时态的说法，只有一般时，进行时，完成时 以及 完成进行时做四种时态。
以不定式为例，分别是 to do，to be doing，to have done，to have been doing
可以可以不用。
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绛旓細涓鑸儏鍐典笅锛屼富鍔鐨勮繃鍘诲畬鎴愭椂鎴栫幇鍦ㄥ畬鎴愭椂鐢╤aving done锛岃鍔ㄧ殑杩囧幓瀹屾垚鏃舵垨鐜板湪瀹屾垚鏃剁敤having been done銆
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绛旓細鍙敤one more hour 濡傛灉瑕侀塁鐨勮瘽瑕佹妸and鍘绘帀,鎹㈡垚閫楀彿鎵嶅彲浠,鍥犱负闈炶皳璇姩璇鐭浣滅姸璇繀椤荤敤閫楀彿鍜屼富鍙ラ殧寮 绗簩棰橀塀,鎯抽堿鐨勮瘽瑕佹敼涓杩囧幓瀹屾垚鏃had you gone,called鏈韩灏卞彂鐢熷湪杩囧幓,鑰屼粬鍘绘煇涓湴鏂瑰簲璇ュ彂鐢熷湪鎴戞墦鐢佃瘽涔嬪墠,鎵浠ユ槸杩囧幓鐨勮繃鍘,were鎰忔濇槸浣犲湪鍝,涓嶅瓨鍦ㄦ椂闂村厛鍚 ...
