One doesn't; the operating system requires using military time, like 1400 hours.

And it may require using some of the budget surplus for a tax cut.

Some applications may require using only one or two actions to provide the appropriate system control.

If you're concerned for your daughter's safety, part of that protection may require using the police and the courts.

This may require using accented letters which are not used in English.

Each character has their own unique special abilities and the game requires using both characters.

It requires using one's imagination as to what the experience of being there would be.

The greatest security requires using multiple types of locks together.

Firefighters were required to truck in water using one of the two tankers the department has.

Special options (including additional system memory) required using expansion slots, of which four were available.