She was using him in an attempt to track them down.
This is an important and often daily process that people use in an attempt to do the right thing.
Five medical students use physical science in an attempt to find out what lies beyond death.
They are also keeping open the option of using American special forces in an attempt to capture the general.
Friends and family used political influence in an attempt to obtain a pardon.
We're not even sure, right now, that we are using correct methods in our attempt to detect them.
Four independent computer models were used in an attempt to assess the performance characteristics.
This particular form is almost universally used in an attempt at humor.
I fancy they will use them in their next attempt, whatever it may be.
Used by the Mayor in an attempt to ensure his reelection.