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Writing & Citing

Guide to Academic Writing

Grammar, Punctuation, and Style

OWL Purdue Resources

Sentence Structure and Style

Parts of Speech

  • Articles
    Articles are words that come before a noun and indicate whether the noun is specific/non-specific, as well as singular/plural. This document provides information about using articles in your writing along with specific examples.

  • Verb tenses
    A verb's tense indicates the point in time when the action takes place. This chart provides examples of English verb tenses and describes the situations in which they are most appropriately used.

  • Singular or plural?
    Nouns can be either singular or plural. A verb must always agree with the subject noun (i.e. a plural form of a noun requires the plural form of the verb).This document contains more information on how to distinguish between singular and plural.

  • Modal verbs
    Modal verbs, including words such as “can”, “could”, “will”, and “would", express likelihood, ability, permission, and obligation. This handout features a guide to using modal verbs in your writing, as well as many examples.

  • The Gerund-Participle Gerunds and participles are words derived from verbs which express action but do not function as verbs in a sentence. A gerund is a verb that functions as a noun in the context of a sentence. A participle is a verb which functions as an adjective or adverb. This handout gives an overview of how to use these kinds of words in your writing, as well as examples of common errors.

  • Prepositions A preposition is a word that modifies nouns, pronouns, adjectives, or verbs to provide information about time, space, or direction. This document provides more information and specific examples.