The detective continued to search for the missing girl.
infinitive: to search.
infinitive phrase: to search for the missing girl.
Just when he started to doubt his plan, he found the scared young girl behind the door to the cabin.
infinitive: to doubt.
infinitive phrase: to doubt his plan.
Do you have the options? But I would guess he borrowed from Love Labour's lost and The Tempest.
With no means of transportation, Henry was late to his class. He wanted a car.
