I've got an appointment with a sales manager this morning.
I HAVEN'T GOT an appointment this morning.
We're working on the new project this afternoon.
We AREN'T working on the new project this afternoon.
There's a meeting next Monday to discuss progress.
There ISN'T a meeting this Monday to discuss progress.
My contract ends in two months.
My contract DOESN'T end in two months.
Tom is attending a training course tomorrow.
Tom ISN'T attending a training course tomorrow.
I'm leaving work at the end of the month.
I'M NOTleaving work at the end of the month.
