بشيء

In a sentence

• أحتاج إلى مساعدتك بشيء مهم.

  I need your help with something important.

  Here, 'بشيء' is used to mean 'with something' indicating a need or involvement with an important matter.

• هل انتهيت من العمل على بشيء الذي طلبته؟

  Have you finished working on the thing I asked for?

  In this sentence, 'بشيء' refers to 'the thing' specifying what the person is referring to.

• أفكر بشيء جديد لتطوير المشروع.

  I'm thinking of something new to improve the project.

  Here, 'بشيء' implies 'of something' indicating an idea or concept under contemplation.