The arrangement of words in a sentence is referred to as word order. In English, the typical word order is subject + verb + object. To find the correct word sequence, you must first grasp what the subject, verb, and object (s) are. Then, put them in the right order when writing or speaking. There are four main types of word order: subject, direct object, indirect object, and prepositional. In simple sentences, the subject and its verb always appear together. The other elements are optional. For example, "John loves Mary" is a simple sentence because it has a subject (John) and a verb (loves). There's no need to include the other elements (Mary, love, John loves Mary). Complex sentences have a subject, a verb, and one or more objects. They can also have adverbs, adjectives, conjunctions, phrases, or other subjects. Adjectives describe nouns; Mary is the object of the description. Complex sentences contain information about relationships between words. In this sentence, who/whom refers to someone who has been identified previously (in this case, Mary).