Going from memory, it goes like this:

Seems so long since I've seen you
Must be five years I guess
You don't look a day over nineteen
But then you never looked a day less, my love
You never looked a day less

Remember the nights on the island
Newcastle ale on the grass
Jeff on stage with the Tridents
Talking 'bout the past, my love
Talking bout the past, my love

(gutar break)

Walking home 'cross the footbridge
Moon in the river below
Wishing we didn't have to walk home
But the buses they weren't slow enough
The buses they weren't slow enough

Seems so long since I've been here
Must be five years I guess
You don't look a day over nineteen
But then you never looked a day less, my love
You never looked a day less

The version I have is from the 1972 B&C sampler, 'Clogs', which is well worth seeking out if you've still got a record player.