名词变形容词：

1.n+y windy,snowy,sunny

2.n+ly friendly ,manly,fatherly

3.n+ful careful,thankful,useful

4.n+less carless,useless

形容词变副词：

1.adj+ly quietly slowly

2.改y为i,再加ly happily,

3.特殊情况 true(truly) terrible(terrily)

祝你进步！