tej jegyző iskolai tábla has been verb ing گرامر kielégít Káros Repülőtér
زمان حال کامل استمراری در انگلیسی | گرامر | زبان امید
1 Present Perfect Continuous. 2 Form n HAVE/HAS + BEEN + -ING n Example: n I have been working. She hasn't been working. Have they been working? How long. - ppt download
زمان ها در زبان انگلیسی | Verb Tenses | خانه زبان
PRESENT CONTINUOUS TENSE - JUST LEARN ENGLISH EASILY