Either comes before two possible alternatives which are separated by or, with no other possible alternatives. Neither is used to state two states or actions that are negative or not possible, and they are separated by nor.
Either or neither can be used at the beginning of a sentence.
Where two subjects are joined by either … or /neither … nor the verb agrees with the subject that is closer to it.
Neither is often used in a clause to follow a negative statement. In the clause, neither is placed at the beginning.
As a conjunction, either comes before two or sometimes more possible alternatives which are separated by or.
- That jumping creature is either a frog or a toad.
- He will decide soon either to be buried or cremated after he died.
As a conjunction, neither is used to state two states or actions that are negative or not possible, and they are separated by nor.
- He can neither hear nor speak.
- We think she has the right weight, as she is neither fat nor skinny.
We can have a sentence with either or neither at the beginning.
- Either we leave for the airport now orwe will miss the flight.
- Neither her father nor her mother will help her with her homework.
Two nouns that are singular and are joined by either … or…or neither … nor, take a singular verb.
- I believe neither Heaven nor Hell exists.
- Neither the gorilla nor the chimpanzee has a tail.
When two subjects are different in number, and are joined by or or nor, the verb that follows agrees with the subject nearest or next to it.
- Either he or you are telling the truth.
- Either you or he is telling the truth.
- Neither he nor you are telling the truth.
- Neither you nor he is telling the truth.
- Either you or I am going.
- Neither you nor I am going.