If the second and fourth lines of the poem rhyme, label these B. Then you can see your four line poem has an A B A B rhyme scheme. If all four lines rhyme with each other, this would be an A A A A ...

The middle line has seven syllables. A sonnet is a much longer poem but also has rules. It has 14 lines It is split into four verses The first three verses have four lines. The fourth verse has ...