对一个英语句子感到奇怪When I began work on the case on Tuesday,we looked for the stranger.(这个句子中“ begin work on.”为什么不用“began working on.”或 “began to work on .”请帮做出解释

对一个英语句子感到奇怪When I began work on the case on Tuesday,we looked for the stranger.(这个句子中“ begin work on.”为什么不用“began working on.”或 “began to work on .”请帮做出解释
对一个英语句子感到奇怪
When I began work on the case on Tuesday,we looked for the stranger.(这个句子中“ begin work on.”为什么不用“began working on.”或 “began to work on .”
请帮做出解释

对一个英语句子感到奇怪When I began work on the case on Tuesday,we looked for the stranger.(这个句子中“ begin work on.”为什么不用“began working on.”或 “began to work on .”请帮做出解释
对于英语为母语的人士来说,很多时候没有人会太过于关心work的词性问题...
began work on:work被用作名词,而且很简练
began to work/working on:如果是我的口语老师的话,会认为不必要或者很牵强...

这边的work做名词用的

work可以做名词