Prevalence[edit] Waking up in the middle of the night, or nocturnal awakening, is the most frequently reported insomnia symptom, with approximately 35% of Americans over 18 reporting waking up three or more times per week.
Definitions. A clause is a group of words containing a subject and verb. An independent clause is a simple sentence. It can stand on its own. Examples: She is hungry. I am feeling well today. A dependent clause cannot stand on its own. It needs an independent clause to complete a sentence. Dependent clauses often begin with such words as although, since, if, when, and because.
In English grammar, a prepositional phrase is a group of words made up of a preposition, its object, and any of the object's modifiers. Prepositional phrases can modify nouns, verbs, phrases, and complete clauses. As demonstrated by several of the examples below, prepositional phrases can be embedded inside other prepositional phrases.