Use this 'Worksheets: Grammar - Subject and Predicate (elem)' printable worksheet in the classroom or at home. Your students will love this 'Worksheets: Grammar - Subject and Predicate (elem)'. Underline the subject once and the predicate twice. This is a set of three worksheets of increasing difficulty ("The boy played" and "The boy played with a dog" and "The boy played with a dog in the snow")