The phrase "has shown up at" is correct and usable in written English.
You can use it when referring to someone arriving somewhere. For example: "John has shown up at the party."
And she has shown up at the office on Sunday to prepare for a busy week.
Yet it's mildly surprising he has shown up at all, let alone on time.
"I've never met someone who has shown up at a track and has left unhappy, or didn't leave a lifelong fan.
It has shown up at practices, at the team hotel and even on the bus ride to Ford Field as the team drove through some rough neighborhoods.
Deciding to take off and wash his clothes after he breaks into Loretta's house, Gunther captures and subdues a bum who has shown up at Loretta's, too.
William Kapps, a security supervisor at the hospital, said Mr. Koenigsdorf has shown up at least four times every week in the past year.
In the Forbes Growth Investor, we begin our research with a quantitative model, and neither stock has showed up at the top of the rankings.
Cannon has showed up at Carey's Halloween party with the kids over the years, and opened up to Ellen DeGeneres about co-parenting with his ex in 2015.
Rubio might not have shown up at all.
Mr. Romney said Obama protestors have shown up at his events.
It was as if Justin Timberlake had shown up at a junior high dance.
