Cut your hair.
Let your hair be cut.
Yuna heard Sara sing in class.
Sara was heard to sing in class.
Jane wrote John a Dear John letter.
A Dear John letter was written to John by Jane.
Sara gave some cookies to Daisy.
Some cookies were given to Daisy by Sara. / Daisy was given some cookies by Sara.
Fix the car.
Let the car be fixed.
Grandpa made Howard clean the table.
Howard was made to clean the table by Grandpa.