early的最高级和比较级（early比较级为什么不加more）

early的比较级和最高级分别是earlier和earliest，举例用法:

The results are entirely consistent with our earlier research.这些结果与我们早些时候的研究完全吻合。

The earliest possible date I can make it is the third.我最早也要到三号才能赶到。