You should do...
Hi,
You should get help from some one who knows how to Write in your native language, to learn how to Sign in your native lang. and do the same on the form.
Disclaimer: This is NOT a Legal advice. I\'m not responsible for any effects of following this info. Do at your own risks. Consult a Qualified Immigration Attorney.
Hope this helps.
Good Luck and Best Wishes!
Have a good day.
Regards
Princess