Possession: of and 's

In English, we can express possession in two main ways: using 's (apostrophe + s) and of. The choice between them depends on what or who possesses something. 1. Using 's (Apostrophe + s) We use 's for possession when talking about people or animals. This shows that someone or something owns or has something. It's informal and commonly used in everyday speech and writing. Examples: Tom's book. The dog's collar. Maria's car. 2. Using 'of' We use 'of when talking about groups, inanimate objects, or formal possession (e.g., for things like institutions or concepts). It's more formal and often used in written language. Examples: The color of the car. The members of the team. The title of the book. The results of the experiment.