The concert began at 5 - the concert had begin by 5
The rain stopped at that time - The rain had stopp by that time
She read the play in the ivening - She had read the play by the ivening
They finished the article on the 1st of March - They had finish the article by the 1st of March
The weather changed on Monday - The weather had chang by Monday
The family discussed the new TV show when I came home - The family had discuss the new TV show by the time I came home
I picked the cases when the taxi arrived - I had pick the cases by the timethe taxi arrived