The phrase "implore them to stop" is correct and can be used in written English.
You can use this phrase when you are asking someone to stop doing something in a very urgent or desperate way. For example: "I implored them to stop fighting, but they would not listen."
Ms. Escandon also has her pupils write letters to parents or grandparents, imploring them to stop smoking.
The maesters, meeting around a table, scoff at Bran's warning; Sam implores them to stop scoffing.
Their Facebook page called on volunteers to download free attack software and implored them to "stop child abuse" by joining the cause.
People are tarnishing the memory of Duggan by committing atrocities in his name, despite his family members repeatedly imploring them to stop.
There's a scene in "Margaret" in which the main character, a high-school girl named Lisa Cohen, sits on a boulder in the park smoking a joint with a friend (and griping about the signs), when their teacher (played by Broderick) comes by and ineffectually implores them to stop.
The Blackwater employees said that talk about the Sept. 16 shootings had also focused on a heated dispute between members of the team in the square, pitting the men pouring gunfire into Iraqi vehicles against other Blackwater guards who were imploring them to stop.
Of course, T-Mobile CEO John Legere doesn't quite see it that way — at the carrier's launch event in New York, he's spent quite a bit of time railing against the other domestic carriers and went as far as imploring them to "stop the bullshit".
So I'm going to have to say it, and risk more abuse, more sullen faces, more social media slating - although hopefully not more people tagging all my main clients in a tweet imploring them to stop hiring this "gutter press" journalist.
Their parents implored them to quit the hacking and stop messing around online.
