According to the report, the cost of installing sprinkler systems to the home builder averaged $1.61 per sprinklered square foot. Sprinklered square feet is the total area of spaces with sprinklers. The cost of sprinkler systems to the home builder, in dollars per sprinklered square foot, rangedfrom $0.38 to $3.66.
A reflexive verb is a verb that has an object which is the same as the subject of the verb ==> the action of the reflexive verb is something one is doing to or for oneself. Some verbs are reflexive all or most of the time, others are only reflexive when used in certain ways.
They cause the verb to reflect back on the subject. In other words, reflexive pronouns are used when the subject of the sentence is the same as the object of the verb of that sentence. Here is an example that might aid you in understanding this concept: I washed myself clean in the bathtub.