Respuesta :

 the rhyme scheme is abab cdcd efef. there are fourteen total lines. the first twelve are divided into three quatrains where he establishes a theme or problem that he resolves in the last two lines. called the couplet 
 

The sonnet of shakespeare is composed of 3 quartets (four verses stanzas) and 1 couplets (two verses stanza). The rhyme is done in the sequence abab cdcd efef.

Hope this helps