These are the full lyrics. Hope it helps.

Big Tree   

by Ralph McTell

When I was a little kid not very old
Me and Susie at the top of the road
Used to run in the garden free
Playing games around a big tree.

One afternoon whilst we played
We was led to the big tree's shade
I showed her, she showed me
Lots of fun behind the big tree.

Big tree, what do you know?
Why do you spread your branches low?
Big tree, knows everything
Look at him tremble in the wind.

Soft grass and a leafy bed
We touched tongues and giggled instead
I showed her, she showed me
But we got caught behind the big tree.

Win was a neighbour who complained
She told us both to be ashamed
I got cuffed, Susie cried
But we couldn't have done nothing if we tried.

Big tree, why do you sigh?
Come on and raise your branches high
Big tree was our friend
But the big tree knew how it would end.

Ain't it a crime, or is it a sin?
We was barred from the garden, and we couldn't get in
Me and Susie had nothing to hide
But I guess we'll make it in the world outside.

Big tree, what do you know?
Come on and spread your branches low.
Big tree knows everything
Look at him tremble in the wind.