I made all the necessary preparations for the party.

She is preparing dinner for her family.

I am preparing for the exam.

She made some preparative arrangements for the party.

I have a lot of preparative work to do before the event.

She is taking preparational classes for the exam.

The preparators are responsible for setting up the exhibits.

The preparator carefully arranged the specimens for the exhibit.

She studied preparatively for the exam.

This dish is easily preparable.