By the time mum came home her con didin't had cooked the dinner.
Did by the time mum came home her con had cooked the dinner?
Sandra didn't had been writing a report for three hours before she realized it was too late.
Did Sandra had been writing a report for three hours before she realized it was too late?
This bridge didn't was built in 1953.
Did This bridge was built in 1953?
Tom was reading a very interesting book while his dad didn't was watching a football match.
Did Tom was reading a very interesting book while his dad was watching a football match?
