Capo 3rd fret

Standard (EADGBE)

When I was just a little boy

 I asked my father, how would it be

 Would I be able to play in the trees?

 Cause they're cutting down forests and spreading disease

And here's what he said to me

 Que sera sera

 Whatever will be will be

 The future's not ours to see

 Que sera sera

This is somewhat incomplete, but should be more than enough to get a feel.