Sonnets are divided into Italian style and English style. The rhyme rules of the two are different. The Italian style is very troublesome because each rhyme is different, ABAB, CDCD, EFEF, GG; the English style is relatively different. Simple, you are talking about the English sonnet rhyming method. The English style is famous for Shakespeare's sonnets, also called Shakespearean sonnets.
What we learned in our English and American literature class~