یہی

In a sentence

• یہی کتاب میں کل لایہ ہوں۔

  This is the very book I brought yesterday.

  This emphasizes a specific object as precisely the one referred to.

• میں یہی کام کر رہا ہوں۔

  I am doing exactly this task.

  This denotes the specific task currently being performed.

• یہی وجہ ہے کہ میں نہیں گیا۔

  This is precisely the reason I didn't go.

  This specifies the exact reason being discussed.