Question about poem, rhyming schemes?

Question:If its

A
B
A
B

Do the "A"s AND the "B"s have to rhyme?

Best Answer - Chosen by Asker: If its

A
B
A
B

Do the "A"s AND the "B"s have to rhyme?

I'm 99% sure that mean the last two words in each A line must ryhme with eachother and that each B line must ryhme with eachother, but that A doesn't ryme with any B's

if its abab then yes a rhymes with a, b rhymes with b