write的名詞形式是？

　　雙語例句

　　1.I can't read your writing.

　　你的字我認不出來。

　　2.Maggie's writing was virtually indecipherable.

　　瑪吉的字跡幾乎無法辨認。

　　3.Writing had not been invented as yet.

　　書寫當時還沒有被創造出來。