1. Liz isn't trying to fix her washing machine.
Is Liz trying to fix her washing machine?.
2. We weren't having lunch when our uncle came.
Were We having lunch when our uncle came.?
3. She hasn't already started her new job.
Has She already started her new job.?
4. By the end of the year he hadn't learnt to speak French.
By the end of the year had he learnt to speak French.?
5. My secretary hasn't been typing the report for five hours.
Has been my secretary typing the report for five hours.?