There's one Bousoño points out in Carnero and Gil de Biedma, maybe in Cerunda: the fourteen syllable line divided into 7 + 7, with one of the lines shortened to 6. 

Now we have units of 5, 6, and 7. 

"en aquellos momentos / de miedo y esperanzas"

five six seven

 If we have a 11 syllable line that dives up into 5 and 6.

Then a seven syllable line. 

The we have a nice asymmetrical pattern of 5, 6, 7. Góngora does this a lot:  

"Desnudo el joven, cuanto ya el vestido

océano ha bebido..."