When i get my tax return do i have to print and download to send it back sing?

I do not understand your question.  For 2019?  It is too late to efile.  So yes you have to print and mail your return.

Be sure to attach copies of your W2s and any 1099s that have withholding on them.  You have to mail federal and state in separate envelopes because they go to different places.  Get a tracking number from the post office when you mail them for proof of filing.

What do you mean get your tax return?  from where?

If you e-filed your 2019 tax return it has already been electronically signed when you entered the 2018 AGI or if a 2018 tax return was never filed you entered a 0 for the 2018 AGI.

You should always keep a copy of your tax return -

To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/

Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show.  Click on the Year and Click on Download/print return (PDF)