Never have I 

Never have I ridden on a dinosaur  but I have ridden a donkey on a soft sandy beach.

Never have I eaten the hottest pepper in the world but I have eaten a cold ice cream at the Rowdy Cow.

Never have I ridden a rocket to Mars but I have ridden a bike down Jump Farm Road.

Never have I jumped of Mount Everest but I have jumped of a rock into freezing cold water

Never have I raced with a monkey down a hill but I have raced with my sister down the front garden.