INGLESE regole d'ortografia per i verbi

nell'aggiungere le desinenze dei verbi  (-s alla terza persona  singolare del presente indicativo oppure -ed per formare il passato e i participio passato
-ing per formare il gerundio)  si devono tener presente  le regole generali di ortografia

ma quando l'infinito termina in ie si cambia la  si cambia la ie in y  prima di aggiungere -ing


infinito                3 persona singolare                 passato prossimo         gerundio
                            presente indicativo

to invent                invents                                     invented                   inventing

to brush                 brushes                                    brushed                     brushing

to study                 studies                                      studied                     studying

to stop                   stops                                         stopped                    stopping

to refer                  refers                                         referred                   referring

to travel                travels                                        travelled                  travelling

to do                     does                                             did                           doing

to love                   loves                                          loved                       loving

di die                     dies                                            died                         dying