The words are different from the original (Child) but this is a very close approximation of the song as performed by Sandy Denny.
"I forbid you all that wear gold in your hair To travel to Carterhaugh, for young Tam Lin is
that go by Carterhaugh but they leave him a pledge Either mantles of green or else their maidenhead"
Janet tied her kirtle green a bit her knee And she's gone to as fast as go can she
She'd not a double rose, a rose but only two When up then young Tam Lin, says, "Lady, pull no more"
"And why come you to Carterhaugh command from me? " "I'll and go", young Janet said, "and ask no leave of thee"
Janet tied her green a bit above her knee And she's to her father as fast as go can she
Well, up then spoke her dear and he spoke 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 were an knight, as he is an elfin grey I'd not my own true love for any knight you have"
So Janet tied her kirtle green a bit her knee 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 years she pays a tithe to I so fair and of flesh and feared it be myself
But tonight is Halloween and the folk ride Those that would let 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 white steed and the rider down
For ride on the white steed, the nearest to the town For I was an earthly knight, they give me renown
Oh, they will turn me in your arms to a or a snake But me tight and fear not, I am your baby's father
And will turn me in your arms into a lion bold But hold me and fear not and you will love your child
And they will turn me in arms into a naked knight But cloak me in mantle and keep me out of sight"
In the middle of the night she heard the bridle She heeded he did say and young Tam Lin did win
Then up the fairy queen, an angry queen was she, "Woe her ill-far'd face, an ill death may she die"
"Oh, had I known, Tam Lin,'' she said, "what this I did see I'd have him in the eyes and turned him to a tree"