flunk
verb (used without object)
to fail in a course or examination.
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He had been flunking of her all the time.
From The White Hand and the Black A Story of the Natal Rising by Bertram Mitford