[LiveCycle Placement Rules] Default placement for the label is to the left of the drop-down list. If this is not possible, LiveCycle will attempt to place it immediately above the control.. [Control Type] 
Combo box
T e x t i n p u t ( i n c l u d i n g d a t e / t i m e a n d p a s s w o r d f i e l d s )
C h e c k b o x
R a d i o b u t t o n g r o u p
C o m b o b o x
L i s t b o x
B u t t o n