1.现在分词做定语时,位置不定,如果是一个现在分词,前置,如果是短语后置.表主动.
The (flying )kites are high in the sky.
The boy (sitting by the window )is Tom.
2.过去分词作定语和现在分词相同,如果是一个过去分词,前置,如果是短语后置.表被动.
The (damaged )bike was sent to the repairman.
The boy (named Tom )was hurt in the car accident.
以上回答只是最基本的用法,不定式和现在分词的时态和语态还有变化,不再展开,希望对你有帮