@cdenise1959 - just so you don't miss it in all the information provided by others:
if you owe for any of these years, you owe it. there is no 'statute of limitations' that absolved you of it.
if you are due a refund, the deadline to request that refund is 3 years from the original or extended filing deadline . That means for tax year prior to the 2020 tax year, that deadline has effectively passed.
The deadline to request a refund for 2019 was July 17, 2023 (unless you originally requested an extension in which case it is October 15, 2023).
