لكنها

In a sentence

• كنت سعيدًا، لكنها أخبرتني بخبر مزعج.

  I was happy, but she told me upsetting news.

  The word 'لكنها' is used here as a conjunction introducing a contrast to the previously mentioned information, articulated through the pronoun 'ها' to refer to 'she.'

• السماء كانت غائمة، لكنها لم تمطر.

  The sky was cloudy, but it didn't rain.

  The word 'لكنها' acts as a conjunction linking conflicting ideas, with 'ها' referring to 'the sky' as the subject.

• يبدو هذا الكتاب ممتعًا، لكنها صفحات قليلة.

  This book seems interesting, but its pages are few.

  Here, 'لكنها' connects contrasting clauses, with 'ها' referring to 'the pages' attributed to the book.