The words are different the original (Child) version but this is a very close approximation of the song as performed by Sandy Denny.
"I forbid you maidens all that wear gold in your To travel to Carterhaugh, for young Tam Lin is
that go by Carterhaugh but they leave him a pledge Either their mantles of or else their maidenhead"
Janet tied her kirtle green a bit her knee And gone to Carterhaugh as fast as go can she
She'd not pulled a double rose, a rose but two When up then came Tam Lin, says, "Lady, pull no more"
"And why come you to Carterhaugh without command me? " "I'll and go", young Janet said, "and ask no leave of thee"
tied her kirtle green a bit above her knee And she's gone to her as fast as go can she
Well, up then spoke her father dear and he meek and mild "Oh, and alas, Janet," he said, "I think you go child"
"Well, if that be so," Janet said, "myself bear the blame There's not a knight in all your hall get the baby's name
For if my love an earthly knight, as he is an elfin grey I'd not change my own true love for any you have"
So Janet tied her kirtle green a bit above her And she's gone to as fast as go can she
"h, tell to me, Tam Lin," he said, "hy came you to dwell? " "The queen of fairies caught me when from my I fell
And at the end of seven she pays a tithe to hell I so fair and full of flesh and it be myself
But tonight is and the fairy folk ride Those that let true love win at Mile's Cross they must bide
So first let pass the horses and then let pass the brown Quickly run to the steed and pull the rider down
For I'll ride on the white steed, the to the town For I was an earthly knight, they give me renown
Oh, they turn me in your arms to a newt or a snake But hold me and fear not, I am your baby's father
And they will turn me in your arms a lion bold But hold me and fear not and you will love your child
And they will turn me in your into a naked knight But cloak me in your and keep me out of sight"
In the middle of the night she the bridle ring She heeded what he did say and Tam Lin did win
Then up spoke the fairy queen, an queen was she, "Woe betide her ill-far'd face, an ill may she die"
"Oh, had I known, Tam Lin,'' she said, "what night I did see I'd have looked him in the and turned him to a tree"