Looking on the internet deeply has found these results:

they all are written is the most popular phrase on the web.

they are all written 1338,000 results on the web	they all are written 11,050,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
They're all written by Chris Columbus. It's like they were all written by children. It's all written in Latin because this document is of the Middle Ages. The package is all written in Italian. And are they not all written by men? Here, it's all written down. And it's all written down somewhere. Bread, chicken, mineral water, it's all written down...	All of the important indicators are written in the bone if you look carefully. After all, they are written to Him. They are written in several languages, even Cyrillic. Your guides are written with imagination. Perhaps these lines are written by Quintanus? Check that your username and password are written correctly. There are written and physical evaluations, a full criminal background check and then the interviews. None of the commandments are written in stone.

they are all written

1338,000 results on the web

they all are written

11,050,000 results on the web

More popular!

All of the important indicators are written in the bone if you look carefully.
After all, they are written to Him.
They are written in several languages, even Cyrillic.
Your guides are written with imagination.
Perhaps these lines are written by Quintanus?
Check that your username and password are written correctly.
There are written and physical evaluations, a full criminal background check and then the interviews.
None of the commandments are written in stone.