Capitalize the first word in any sentence, the personal pronoun I, and the first word of a direct quotation if it is a complete statement. Capitalize all proper nouns and adjectives such as the names of persons, business firms, business products, institutions, government bodies and agencies, and public and private organizations.
English has four basic sentence constructions: simple, compound, complex, and compound-complex. Each construction uses the same basic elements of sentence structure—parts of speech, phrases, and clauses.
The subject is the person, place, or thing that is the topic of the sentence. The predicate is what is said about the subject.
Phrases are groups of related words that do not contain a subject-verb combination or express a complete thought. Clauses are groups of related words that contain a subject-verb combination.
A sentence is a group of words that expresses a complete thought. It begins with a capital letter and closes with an end mark, either a period, a question mark, or an exclamation point.
Italics are used to indicate emphasis, to mark foreign terms and expressions not commonly used, and to highlight titles of publications and names of certain vehicles such as ships, spacecraft, and the like.
Ellipses indicate that material has been omitted from a quotation or quoted material. When words are omitted at the end of a sentence, use an end mark plus the ellipses.