Sentence Structure: when an essay question asks you to analyze sentence structure, look at the type of sentences the author uses. Remember that the basic sentence structures are simple, compound, and complex, and variations created with sentence combining. Also consider variation or lack of it in sentence length, any unusual devices in sentence construction, such as repetition or inverted word order, and any unusual word or phrase placement. As with all devices, be prepared to discuss the effect of the sentence structure. For example, a series of short, simple sentences or phrases can produce a feeling of speed and choppiness, which may suit the author's purpose.