Looking on the internet deeply has found these results:

to showed up his boss is the most popular phrase on the web.

to show his boss 1101,000 results on the web	to showed up his boss 152,700,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I got something to show you, boss. in navigation system. All because Ken Leeds wanted a trophy to show his boss. You got to show me who's boss. Well, I wanted to show Boss his new smartphone's built Okay, but I've got nothing new to show you, boss. And Michael finally got to show his father who's boss. They're waiting on the big boss to show.	Perkins had to have knowledge of this, and he's going to give up his boss. That's a promise. That was when the man's old boss showed up in front of him. He recorded his boss planning a bribe. His boss called an hour ago to say he never showed up. His boss convinced him that all Russians were savages. The sheriff showed up and gunned him down. At my old firm, my boss was on the partner track, and then Gina showed up. He called up his agent, will showed up with backstage passes, and within the hour, I was getting wrecked in a dressing room with cee lo.

to show his boss

1101,000 results on the web

to showed up his boss

152,700,000 results on the web

More popular!

Perkins had to have knowledge of this, and he's going to give up his boss. That's a promise.
That was when the man's old boss showed up in front of him.
He recorded his boss planning a bribe.
His boss called an hour ago to say he never showed up.
His boss convinced him that all Russians were savages.
The sheriff showed up and gunned him down.
At my old firm, my boss was on the partner track, and then Gina showed up.
He called up his agent, will showed up with backstage passes, and within the hour, I was getting wrecked in a dressing room with cee lo.