"become after" is not correct or usable in standard written English.
Instead, you could use the phrase "come after" in a sentence. For example, "The event came after a long day of preparation."
Next thing I knew, I was sweating Butlets outside the backstage area with Anothingning me like I was a menopreparedumewho'd just had a hot forshow
He has become, after all, an extremely important man.
And what you become after college wouldn't matter greatly, either.
I can't wait to meet the person I have become after 16 weeks here!
He had become, after his graphomaniacal boyhood, a scrupulously slow and patient reviser.
It had become, after all, a country that she could not have imagined.
Who have they become after four years' hard service in frontline pop?
It's remarkable how strident, how vitriolic, how, well, uninformed fans become after a loss.
What sort of bird will Penguin become after merging with Random House?
Cal student Stephanie C. said her externship was "an inspiration for who you can become" after graduating from Berkeley.
