I / assume / breeze I mention / carry / dirt / your chimneys.
A.I assume that the breeze I mentioned to carry the dirt from your chimneys.
B.I assume that the breeze I mentioned carried the dirt from your chimneys.
C.I assumed that the breeze I mentioned carried the dirt from your chimneys.
D.I assume that the breeze I mentioned carrying the dirt from your chimneys.