Tense - AMA Manual of Style

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Stacy Christiansen

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PRINTED FROM AMA MANUAL OF STYLE ONLINE (www.amamanualofstyle.com). © American Medical Association, 2009. All Rights Reserved. Under the terms of the license agreement, an individual user may print out a PDF of a single chapter of a title in AMA Manual of Style Online for personal use (for details see Privacy Policy). date: 29 November 2015

Tense indicates the time relation of a verb: present (I am), past (I was), future (I will be), present perfect (I have been), past perfect (I had been), and future perfect (I will have been). It is important to choose the verb that expresses the time that is intended. It is equally important to maintain consistency of tense. The present tense is used to express a general truth, a statement of fact, or something continuingly true.He discovered enzymes RNA polymerases that directly copy [not copied] the messages encoded in DNA. For this reason, the present tense is often used to

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