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Section 12.1


The subject of a sentence is the noun or noun phrasethat performs the action within the sentence. In passive sentences, the subject is the recipient of theaction.

Some researchers assert that clockless processors willsoon become cheaper, more reliable, more energy efficient and easier to designthan chips based on today's prevailing technology.

--W. Wayt, "Turning Back the Clock," Scientific American(modified)

Your verb must agree withyour subject in number and person.

Every sentence must have a subject. If there is no noun subject, you must usean expletive, it or there, in the subject position.

It is possible to calculate how much matter the galaxymust have in order to hold a star in its orbit by the force of gravity.

--"The Milky Way," Compton's Encyclopedia

Not all the galaxy's stars are confined to the galactic plane.There are a few stars that occur far above or below thedisk.

--"Astronomy," Compton's Encyclopedia

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