Come ponder with me, as we go forth,
How we behave in a manner of worth.
With a single change, that worth is no more.
Instead we consider the ones before.
After one more change, seen with different eyes,
We behave in a way we won't trivialize.
To solve my riddle thoroughly,
You'll need to give me answers three.
You are looking for three words that can be changed into each other according to the instructions in the poem.
The first line of the poem is meant only as an introduction. "Going forth" is not a clue to the word you're looking for.
I'm looking for 3 adverbs, of 10 letters each.