Can I use "didn't" with "had" by reframing a sentence? [closed]

''Thank You' to everyone. I didn't have the time to reply. '

This sentence is obviously correct. But can I reframe it in the following way ?

''Thank You' to everyone I didn't had the time to reply to.'

(Ignore the essence of the sentence. The meaning remains the same in the original context.)

The auxiliary do, in all its forms ("do", "does", "did", "don't", "doesn't", "didn't") is always followed by the base form of the main verb. So "didn't had" is never grammatical.

"'Thank You' to everyone I didn't have the time to reply to." is perfectly good, but I'm not sure if you're actually asking about "had" or about the final "to" or whether you think they are somehow connected.