The lines from Sonnet 106 of Shakespeare's is made up of a rhyme scheme of abab, cdcd, efef, gg.
The lines are:
When in the chronicle of wasted time
I see descriptions of the fairest wights,
And beauty making beautiful old rhyme,
In praise of ladies dead and lovely knights,
Then in the blazon of sweet beauty's best
Of hand, of foot, of lip, of eye, of brow,
I see their antique pen would have express'd
Even such a beauty as you master now.
In the sonnet, the poet talks about the chronicles in which the descriptions of past has been documented. In those accounts, past has been portrayed beautifully. The poet marks the similarities between the past and the young man. The sonnet concludes with the assertion that the beauty of the young man can be discovered through past.