他正在写字的英文

I am reading English.He is writting.Are you singing?Yes,I am singing,Is he listening to music?

I am reading English, he is writing, you are singing?Yes! I am singing. Does he listen to music?

She is writing

He was writing。 过去进行式（正在~）He was write。是错误的，一个句子中只能有一个中心谓语，was（is）是谓语，write也是谓语，所以句子语法错误。最多He wrote down some numbers。他写下一些数字