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"may have been" or "may has been"? Dinosaur DNA may have been preserved when prehistoric mosquito became stuck in tree sap. Dinosaur DNA may has been preserved when prehistoric mosquito became stuck in tree sap.
2015년 12월 30일 오전 12:01
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May have been
2015년 12월 30일
"Have" - Following modal verbs (such as can, may, might), the uninflected form of the full verb is always used.
2015년 12월 30일
May have been preserved
2015년 12월 30일
it
2015년 12월 30일
may have been.
2015년 12월 30일
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