You can visit the official website of JEE Mains i.e., www.jeemain.nic.in (//www.jeemain.nic.in) and find the link for JEE Main 2019 question papers and ten download them.

If you can not find the link, then for your reference I'm providing you the direct link to download the 2019 Question paper.

Question paper that you will download from this link will be in the three languages, Gujrati, English and Hindi.

Here is the link:

https://jeemain.nta.nic.in/WebInfo/Public/View.aspx?page=4