Infinitive                           Past Tense                             Past Participle                                คำแปล

 unbend                              unbent                                      unbent                                             ทำให้ตรง

unbind                                 unbound                                 unbound                                          แก้

underbid                            underbid                                  underbid                                         ตัดราคา

undercut                            undercut                                    undercut                                         ตัดส่วนล่าง,ตัดราคา

underfeed                        underfed                                   underfed                                         ให้อาหารไม่เพียงพอ

undergo                           underwent                                undergone                                      ผ่าน,ทนต่อ

underlie                           underlay                                    underlain                                        วางอยู่ข้างใต้

undersell                         undersold                                undersold                                         ขายตัดราคา

understand                     understood                             understood                                       เข้าใจ

undertake                       undertook                               undertaken                                        ยอมรับ

underwrite                      underwrote                              underwritten                                     เขียนไว้ข้างใต้

undo                                undid                                          undone                                             เปลื้อง,ลบล้าง

upset                               upset                                           upset                                               ทำให้อารมณ์เสีย