1 James told us about the shange of his plans.
Did James tell us about the strange of his plans?
James didn't tell us about the strange of his plans.
2 My accountant phoned me the day before yesterday.
Did my accountant phone me the day before yesterday?
My accountant didn't phone me the day before yesterday.
3 He was on a business trip last month.
Was he on a business trip last month?
He wasn't on a business trip last month.
4 The secretary is sending the documents by airmail.
Is the secretary sending the documents by airmail?
The secretary isn't sending the documents by airmail