Possessives

A possessive pronoun indicates, as the word says: a possession. 

 

Julie's keys are on the table. 

My sister's shoes are blocking the hallway. 

The colour of the bridge.

 

For people or animals in singular form: 's

 

For people or animals in plural form: '

 

For expressions of time singular 's and plural '

 

...of... for geographical locations (although it's quite often indicated with either 's or ')