If only. If only, if only. Two words that evoke a sense of yearning, of a road not taken.
Much like: could have, would have, should have.
“I could’ve been a contender.”
I would have been there for you.
I should have listened to my mother.
Words that may impart a sense of regret, remorse, or resignation.
A sense that life...could have, would have, and should have been...different...if only.