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.
Hint 1
You are looking for three words that can be changed into each other according to the instructions in the poem.
Hint 2
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.
Hint 3
I'm looking for 3 adverbs, of 10 letters each.