Wolfie, great example.
Carol, sometimes how you stress will make a difference in how the person will hear, whether it will bother their ears. And don't worry if you can't hear the difference, when you send it out to critique partners, they'll tell you what bumps or doesn't feel right.
I speak Hindi and the alphabet is organized according to the sounds (without any accents) k, kh, g, gh (written out like this, you can tell the difference) but my poor husband thinks I'm just saying k,k,k,k. It's pretty funny. Plus we have sounds that aren't in the English language and he can't for the life of him make them.
Okay, back to rhymes. I think the best you can do is write your poems, have them critiqued and then send them out. Then you and your editor can hash out the finer points. Sometimes, you have to rewrite an entire couplet fifty times to make the thing work but it's usually better than the first try.
Good luck, Vijaya