2 regions
Linear
3 regions
Trigonal planar
3 regions, 1 lone pair
Bent
4 regions
tetrahedral
4 regions, 1 lone pair
trigonal pyramid
4 regions, 2 lone pairs
bent
5 regions
trigonal bipyramid
5 regions, 1 lone pair
seesaw/sawhorse
5 regions, 2 lone pairs
t-shape
5 regions, 3 lone pairs
linear
6 regions
octahedral
6 regions, 1 lone pair
square pyramid
6 regions, 2 lone pairs
square planar
6 regions, 3 lone pairs
t-shape
6 regions, 4 lone pairs
linear