1.VerbTo predict or believe that something will happen
"when you least expect it; I expect to be able to walk again after getting over my broken leg.; The hostage is expected to be released later today.; I expect it'll rain this weekend, but I hope it won't.; I did not expect you'd come before I asked you to, but do expect you to apologize for it."
2.VerbTo consider obligatory or required.
3.VerbTo consider reasonably due.
"My parents expected too much of me when I was in college.; You are expected to get the task done by the end of next week."