Down can be used in many ways! The most common is following a verb as adverb or preposition particle.
1 DOWN (RP) 6295531
4 DOWN (II) 388611
5 DOWN (RP_NN1%) 74762
6 DOWN (NN1) 69979
7 DOWN (RL22) 67905
9 DOWN (RP_VV0%) 43485
10 DOWN (JJ) 39955