相当于一个实义动词，也可以构成非谓语(动词不定式，动名词，分词)，存在及物不及物之分，存在五种动词格式
[ go ahead ] 不及物动词
went ahead gone ahead going ahead goes ahead
① 表示 先走，行进在前面
You go ahead and tell him we're coming.
你去告诉他我们要来了
② 表示 进展、进行
The work is going ahead in good style.
这项工作正在进行得很好
③ 用于祈使句，表示 干吧、玩吧、开始吧
- May I start? 我可以开始了吗
- Yes, go ahead. 开始吧
Go ahead, we're listening. 讲吧我们听着呢
[ go along (with) ] 不及物动词
went along gone along going along goes along
① 表示 与...一道去，后接 with 引导的短语
He went along with the children to the movies.
他和孩子们一起去看电影
② 表示 前进，向前走
He went along on foot.
他步行向前走去
[ go away ] 不及物动词
① 表示 逃走，与 with 连用
He has gone away with my watch.
他已经带着我的手表走了
Go away and leave me in peace.
走吧，让我安静下来
[ go back to ] 及物动词，接名词或代词
① 表示 回到，追溯到
He went back to this seat.
他回到了这个座位上
It's history goes back to the eighth century.
它的历史可以追溯到八世纪。
[ go bad ]
① go 为连系动词，相当于 become, get, turn，后接形容词，表示变成某种状态
The milk has gone sour.
牛奶已经变酸了