Listen to the song by Owl City and fill in the gaps. You will find some examples of the infinitive.

1. You would not believe your eyes
   If ten million fireflies
   lit up the world as I fell asleep
   'Cause they'd fill the open air
   And [ ]teardrops everywhere
   You'd think me rude but I would just stand and stare

2. I'd like [ ]myself believe
   That planet Earth turns slowly

3. When I fall asleep leave my door open just a crack
   (Please take me away from here)
   'Cause I feel like such an insomniac
   (Please take me away from here)
   Why do I tire of counting sheep
   (Please take me away from here)
   When I'm far too tired [ ]