You use expect when you believe or think something will happen. It means you wait for a result or event soon. This is the most common use of the word.
I expect the bus at five o'clock.
They expect good weather tomorrow.
This use means to want or need someone to do something. It shows a rule or order that is normal or right. It can be about behavior or actions.
I expect you to finish your work on time.
She expects respect from her team.
Here, expect means to think something will happen because plans or rules say so. It is used for official or planned situations.
This train is expected to arrive at noon.
The event is expected to start soon.
When we say someone is expecting, we mean she is pregnant and will have a baby soon. This is a polite or common way to say this.
She is expecting her first child.
They are expecting a baby in May.
This use means to think somebody should be treated or behave a certain way. It shows belief about what is correct or normal.
You cannot expect special treatment here.
They expect all guests to be on time.
Expect can mean you wait for something to happen, thinking it will. It shows your hope or belief in future events.
We expect the game to start soon.
I expect good news tomorrow.