Either / or - Neither / nor

Today we shall discuss about the Usage of Either / Or and
Neither / Nor. 

Usage of Either / or : 

       We can use either / or in a sentence
in the affirmative sense when referring to a choice between two possibilities

      Ex : We can either study now or after the dinner - it's up to
you.

Usage of Neither / Nor : 

        We can use Neither / Nor  in a sentence in the negative sense when you
want to say that two or more things are not true.

        Ex : Neither my mother nor my father went to university.

Rules you should keep in mind while using Either / Or (or)
Neither / Nor : 

• If both elements are singular, then the verb should also
  be  singular. Have a look at an example,
• Either
  the father or the mother has to attend the meeting. 
• ( Here father and mother
  are singular; so the verb has is also singular)
• Neither Kareena
  nor Saif is going to the function. (Kareena and Saif are singular; so the verb is is also singular)
• However, if one of the elements is plural, then use a
  plural verb.
• Either Jasmine
  or the girls are going to prepare dinner tonight. 
• (the girls is plural; so the
  verb are is plural too)
• Neither
  the lecturer nor the students were in the classroom this morning. 
• (the students
  is plural; so the verb were is plural too)