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最佳答案:know knew knownhave had hadtry tried triedsing sang sungbegin began begun
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最佳答案:我知道knew known
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最佳答案:动词原形-过去分词-过去式know-known-knewrun-ran-ranare-been-wereput-put-putdrink-drunk-drank
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最佳答案:原 过去式 过去分词 现在分词 复数cry cried cried crying crieshave had had having havesfall fell
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最佳答案:the famous scientist named或者called Paul这里的 named或者called 是动词的过去分词作为定语来修饰名词动词的过去分