Participles come in two varieties : past and present .

分词有两种：现在分词和过去分词。

The topic being discussed is participles .

正被讨论的话题是分词。

Both forms are now well established in written english as participles .

现在这两种形式在书面英语中作为分词已完全被接受。

Past participles as adverbials and attributives .

过去分词作状语和定语。

Present participles and past participles used as .

现在分词与过去分词用作形容词。