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السؤال 75

The lab result states that the sample was unstable. Choose the standard negative sentence.

  1. The sample didn't be stable.
  2. The sample was not be stable.
  3. The sample did be not stable.
  4. The sample wasn't stable.الإجابة الصحيحة

الشرح

Because was is a form of be, it takes not directly and needs no form of do. A do-based alternative wrongly treats be as an ordinary lexical verb.

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السؤال 75: The lab result states that the sample was unstable. Choose… · English Questions and Negation · Questena