Can't!
I can't write a poem
I don't know where to start
I can't write a poem
It's much, much too difficult
I can't write a poem
What if I run out of ideas half-way through?
I can't write a poem
Well I've never written one before
I can't write a poem
And I certainly can't rhyme (not even some of the time)
I can't write a poem
I'm nowhere near clever enough
I can't write a poem
Poetry's just not my thing
I can't write a poem
I can't, I can't, I can't
I can't write a poem
Can I?