1.我们常见的go+动词ing,是英语中的固定搭配,有很多类似表达,如go shopping,go walking,go swimming,go fishing,go skating,go bathing,go dancing,go drinking,go climbing等,其意义就相当于go to do,也就是说这些表达都可换成go to do 的形式,如go to shop,go to walk等.
2.我们也看到go and do(另一动词）的表达,多用于祈使句中,如Go and get an apple.去拿一个苹果来.这里的go and get相当于fetch,有去取……来的含义.
3.go +动词原型,多用于口语中,如Let's go finish the job.让我们去完成这项工作.（奥巴马10月10日电台演讲最后一句）,类似情况还有come,如Come talk to me.=Come to talk to me.
可以把这里的go 看成半使役动词,后接省to 的不定式,类似help+(to)do,I will help clean the house on Sundays.我星期天会帮着收拾家务.