She studied fifteen verbs about their past tense and past participle this afternoon.
今天下午，她学习了十五个动词以及它们的过去式和过去分词。
Who knows the Past Tense and the Past Participle form of this verb?
谁知道一般过去时和这个动词的过去分词？
Past tense and past participle of the composition method.
过去式和过去分词的构成方法。
Bought is the past tense and past participle of buy.
买的过去式和过去的购买过去分词。
Bought is the past tense and past participle of buy.
买的过去式和过去的购买过去分词。
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