1. He is a scatterbrain.

2. I'm such a scatterbrain - I'm always leaving my umbrella behind.

3. Mary is such a scatterbrain that she always forgets something.

4. Aunt Mary is such a scatterbrain that she always forgets something.

5. What a scatterbrain! She forgot to plug in the coffee-maker.

6. If you're a scatterbrain like me, you'll probably find this harder than you think.

7. The scatterbrain me might just forget to tell her if I leave it till tomorrow.