• Have:  

   I have lost my keys.

   I have a car.

   They have a dog.

   They had the book.

   We will have a dog.

   I don't have a brother.

   They didn't have a cat.

   They won't have problems.

• Has:

   He has a bike.

   John has a kangaroo.

   We had a lot of work.

   We had a lot of work.

   He will has will have enough time for rest.

   Maria has two sons.

• Got:

   I got lawyers, I got accountants, I got my own charitable foundation.

   I got Pioneer, I got Nakamichi.

   I got Sony, I got everything.

   I got enough things destroying my confidence.

   When I got older, I got a bicycle.

   I got music, and I got youth.

   Now I got tomatoes, I got five kinds of beans, I got squash.