Using all letters

                                                                              combing

                                                                             combining

                                                                           noncombining

                                                                          The other words:

                                                                              bibbing

                                                                              bigging

                                                                               bingo

                                                                              bionic

                                                                              bobbin

                                                                              bobbing

                                                                               bocci

                                                                              bogging

                                                                              bombing

                                                                              bonbon

                                                                              bonging

                                                                               bongo

                                                                              boning

                                                                              booboo

                                                                              booing

                                                                              booming

                                                                               combo

                                                                               coomb

                                                                              gibbing

                                                                              gibbon

                                                                              gibing

                                                                              gobbing

                                                                               gombo

                                                                             imbibing

                                                                              mobbing

                                                                               nimbi