Negative AGI on 2017 & 2018 tax returns...can I carry forward that loss to 2019 where I had a positive AGI?

I started in real estate in 2017 and had negative AGI's in 2017 (neg $5696) & 2018 (neg $5259).  Positive AGI in 2019 ($4170).  On 2018 return, the NOL from 2017 (neg $5696) was entered onto line 8 of sch 1 "other income" as a NOL.  But on my 2019 return, the neg AGI from 2018 (neg $5259) was not entered on line 8 of sch 1.  I am wondering if that can be done now with an amendment to the 2019 return?

 

The same thing happened on the 2020 return, I had no entry on line 8 of sch 1 but if the 2019 return can be amended as described above, then I would need to carryforward the NOL from that return into the 2020 return via an amendment as well.   Then I would carryforward the loss from the 2020 return on the 2021 return which has not yet been done.

 

Thanks in advance for any help with this issue.