1) Knowing English well he translated the article without a dictionary. Knowing — причастие (participle).2) He took part in the sittings. Sittings — отглагольное существительное (verbal noun).3) She is looking at the woman sitting at the window. Sitting — причастие (participle). 4) After saying this he left the room. Saying — герундий (gerund).5) Have you any reason for saying such things? Saying — герундий (gerund).6) The reading of this book took two hours. Reading — отглагольное существительное (verbal noun).7) He sat in the arm-chair reading a newspaper. Reading — причастие (participle).8) My little son shows his enjoyment by crying. Crying — отглагольное существительное (verbal noun).9) The crying child was comforted by his nurse. Crying — причастие (participle).10) She stopped crying, looked up, said nothing. Crying — герундий (gerund).