主谓结构中的动词大多是
不及物动词,所谓不及物动词,就是这种动词后不可以直接接宾语.常见的动词如：work,sing,swim,fish,jump,arrive,come,die,disappear,cry,happen等.如：
1) Li Ming works very hard.
李明学习很努力.
2) The accident happened yesterday afternoon.事故是昨天下午发生的.
3）Spring is coming.
4) We have lived in the city for ten years.