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Godan verb with 'u' ending
See also: 遣る・やる・7
See also: 遣る・やる・11
from やって and しまう
to have (esp. sex, food, etc.)

Conjugated forms
Present, Future やっちゃう, やっちゃいます
[does], will [do]
やっちゃわない, やっちゃいません
doesn't [do], will not [do]
Past やっちゃった, やっちゃいました
やっちゃわなかった, やっちゃいませんでした
didn't [do]
Te-form, Continuative やっちゃって, やっちゃいまして やっちゃわないで, やっちゃいませんで やっちゃわなくて
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