be readingUsed to describe someone currently reading something or being in the process of reading it. The preceding を marks what is being read; the form can change with tense, such as を読んでいた (was reading) and を読んでいます (am/is/are reading).
JA: 今、電車の中で新聞を読んでいる。
EN: I'm reading the newspaper on the train right now.