To form the present participle of a verb, add theending -ing to the base form. The presentparticiple form is used in the following circumstances:
The yeast culture is growing rapidly.
We considered growing the culture in a largerdish.
We placed the rapidly growing culture in therefrigerator.Copyright ©2001 The McGraw-Hill Companies. Any use is subject to the Terms of Use and Privacy Policy. McGraw-Hill Higher Education is one of the many fine businesses of
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