形式，样式 and 方式 - appearance, style, form, shape...?
According to dictionary owned by Ministry of Education in Taiwan.

形式 can mean:


  文學作品上指作品外在的體式。


(Format of literature.)


  抽象或具體的事物，其形態的直接表現或組成。


(The way of how abstract or concrete things show directly or constitution.)

樣式 can mean:


  樣子、形式。


(How does things look like, The way it show directly or constitution.)

方式 can mean:


  說話或做事時所採行的一定方法、模式。


(The way of how to do things.)