Is ‘s or s’, has, is or the possessive’s/s’? Write as in the example

Certainly! Let's look at each sentence:

1. Ken's brother is in the car.

   • Possessive: Ken's

2. He's got a noisy dog.

   • He is: He's

3. She's my grandma.

   • She is: She's

4. That's Carl's idea.

   • Possessive: Carl's

5. She’s got the boys’ notebooks.

   • Possessive: boys'

6. Amir's Tom's best friend.

   • Possessive: Tom's

7. Helen’s mum is the girls’ aunt.

   • Possessive: Helen’s, girls'