理論上是可以的, 但要標點符號要注意, 如下:
There is an unresolved controversy as to who the real author of the Elizabethan plays -- commonly credited to William Shakespeare -- is.

其中的 "--" 是這樣打沒錯, 但是通常 Word 會在你按下第二個 space 之後打接下來的字時自動幫你改格式, 列印出來看起來就會像這樣:
There is an unresolved controversy as to who the real author of the Elizabethan plays ─ commonly credited to William Shakespeare ─ is.

如果是口述的話, 停頓和語調要有所區分才能讓人容易馬上聽懂意思, 否則我是覺得 "There is an unresolved controversy as to who is the real author of the Elizabethan plays commonly credited to William Shakespeare." 比較易懂

以上, 歡迎指教或補充