Answer:
The sonnets of Shakespearean sonnet contains three quatrains and a couplet.
Step-by-step explanation:
The sonnet form found its origin in Italy, which later got popularized by three major Italian masters namely Michelangelo,Dante and Petrarch.
Similar to Italian sonnets, English sonnets too got popularized and got named as " Shakespearean sonnet " after the most famous practitioner Shakespearean.
It contains three quatrains which means a stanza that contain a total of 4 words lines. It also contains a couplet which means that it will contain two lines of verse.
Thus we can conclude that Shakespearean sonnet contains three quatrains and one couplet.