To Expect

1. (transitive, intransitive) To predict or believe that something will happen

Synonyms: anticipate, hope, look for

2. To consider obligatory or required.

Synonyms: call for, demand

3. To consider reasonably due.

Synonyms: hope, want, wish

4. (continuous aspect only, of a woman or couple) To be pregnant, to consider a baby due.
5. (obsolete, transitive) To wait for; to await.

Synonyms: await; wait for

6. (obsolete, intransitive) To wait; to stay.

Synonym: wait

Expect is a mental act and mostly has a reference to the future, to some forthcoming event (e.g. a person expects to die, or he expects to survive). Think and believe may have reference to the past and present, as well as to the future (e.g. I think the mail has arrived; I believe he came home yesterday, that he is at home now). There is a not uncommon use of expect, which is a confusion of the two (e.g. I expect the mail has arrived; I expect he is at home). Await is a physical or moral act. We await something which, when it comes, will affect us personally. We expect what may, or may not, interest us personally. See also anticipate.

This is a catenative verb that takes the to infinitive. See Appendix:English catenative verbs