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"In Part III explain why you are filing Form 8606."

does this content make sense?

"We are filing form 8606 for me(ABC) and my spouse(XYZ). Our contribution for traditional IRA are non-deductible for 2020 tax filing, and I am not sure if I filed these forms earlier with my tax return for 2020. When I checked the IRS transcripts on the IRS portal I did not find form 8606 there, so sending them here(attached). Hope I see these forms applied to my and spouse account in IRS online portal"

So I am planning to send one 1040-X and two 8606(one for me and another for my spouse).

And hope after this, I can convert the t-IRA to roth IRA (backdoor conversion to roth IRA)