[Casiopea]

1-This is a good coat for wearing in the summer. (is for something)
2-This is a coat good for wearing in the summer. (is good for something)

3-This is a good coat to wear in the summer. (is good to do)
4-This is a coat good to wear in the summer. ungrammatical

5-This is a good coat to be worn in the summer. (passive)
6-This is a coat good to be worn in the summer. ungrammatical

:D