I do not think there is a rule
As far as I can remember from school
Whether every two line of poetry must rhyme
Each and every single time
Or whether a line to every other
Must go in sinc in order to be
Called a poem, for they say
You have poetic license, you see?
For now there’s even modern poetry
I can write just as I wish
With no rhyme scheme I can ramble
On and on and on…
Poetry is a means of expression
Different schemes just mean different types
You can choose how you want your writing to sound
It’s your own style, choose as you like!