1. I bet the weather forecast is on in a minute.
The weather forecast may be on in a minute.
2. It's likely that we'll have a very hot summer this year.
We might have a very hot summer this year.
3. I'm sure Tom didn't drive to work, because his car is in the drive, covered with snow.
Tom mustn't have driven to work, because his car is in the drive, covered with snow.
