The trine (prounounced treen) is a French Poetic form consisting of three rhyming couplets and a triplet. There is no fixed meter or syllable count. The rhyme scheme is:
a a / b b / c c / a b c.
So, there's your challenge for the week. I hope you'll join me in writing a trine (or two). Please share a link to your poem or the poem itself in the comments.