Will said, "Does she have to be with this particular person?"

I think it's a part of some particular person's life that somebody once did something bad to them.

"I don't see why you have to stay there and wait for that particular person to come back to life."

I think that's what happened with this particular person as well.

But I do not wish to speak to one particular person.

Leading questions might instead name a particular person rather than asking "who?"

Sometimes one of these drugs is more effective for a particular person than another.

She often asked us to find out exactly when and at what number a particular person would be available to speak.

It is not a test to see if they can reach any particular person.

These can be used to find out where a particular person served.