My brother paints pictures.
Pictures are painted by my brother.
My sister never cooks soup.
Soup is never cooked by my sister.
Many people study English.
English is studied by many people.
I cook spaghetti.
Spaghetti is cooked by me.
We grow vegetables in the garden.
Vegetables are grown in the garden (by us).
We don't make books of plastic.
Books aren't made of plastic.
Many people read books about Harry Potter.
Books about Harry Potter are read by many people.
I take photos of flowers.
Photos of flowers are taken by me.
I write letters.
Letters are written by me.
Birds don't drink tea.
Tea isn't drunk by birds.