He was more interested in preventing any of us from calling for help.

If he failed to prevent the boy from calling Tait, it would be the end.

That would not prevent anyone from calling it what he pleases:

He'd been able to prevent Sam and the medical personnel from calling anyone except Hannah.

Caris had to prevent himself from calling attention to them by catching his sleeve.

"There is nothing in our rules that would prevent us from calling something sleazy," he said.

That would prevent the two from calling in a warning to a Blue ally.

Nearly half of all Connecticut households are on a state list that prevents telemarketers from calling them.

Of course, doing so will not prevent a broker with another firm from calling during dinner time to pitch stocks.

Swirling sandstorms prevented the Americans from calling in air cover.