I'll write a couple because I don't know what genre you are looking for.
Walking through the field,
looking left and right,
sighing and remembering my last meal,
hoping I don't have to get my next by a fight.
Thinking back to when times were easy,
missing being able to have a structured meal,
thinking about food though makes me queasy,
Right now I don't know how to feel.
Stomach is rumbling,
missing the ledge of dirt to step on,
falling and stumbling,
look here, its dinner I've stumbled upon.
Poem two.
Running and running,
seeing my goals in front of me,
not being able to reach them fast enough,
or not being able to reach them at all.
Wondering if I can ever be enough,
if I can meet society's standards,
will I always be a misfit?
one who will never have a place?
I know that I can make my way,
making my goals or not,
I am content with who I am,
whether people like it or not.
There you go, the first one is a rhyming couplet with ABAB, and the second is a non-rhyming poem. Cheers!