after是介词‘在……之后’ ,介词后的动词要用ing形式,
不可以用I to join the army,因为to join是动词不定式,而动词不定式不能作谓语.谢谢，，还有就是 I started go to primary school in 1988.为什么这里go to要删掉呢？？可以用I started going to primary school in 1988.或者I started going to school in 1988吗？用I started to goto primary school in 1988.或者I started going to primary school in 1988谢谢....那么我想再问一下，如果我改为I was to join the army,,请问这样可以吗？