Understanding the intricacies of the English language is essential for effective communication. One word that often confounds learners and native speakers alike is ‘either’.
Its usage can be puzzling, especially when determining whether to pair it with singular or plural verbs.
The word “either” is singular when used in phrases like “either of the options is correct,” but informal speech may use plural verbs, though it’s less formal.
This blog post delves deep into the correct usage of ‘either,’ addressing common misconceptions, exceptions, and practical applications to enhance your grammar skills.

Understanding the Basics of ‘Either’
‘Either’ is a versatile word in English, serving multiple functions:
- As a pronoun: “Either of the options is acceptable.”
- As a determiner: “You can choose either option.”
- As an adverb: “She can either come now or later.”
Historical Context and Evolution
The word ‘either’ originates from Old English ‘ægther,’ meaning each of two. Over centuries, its usage has evolved, yet its fundamental purpose remains to indicate a choice between two options.
The Singular and Plural Dilemma in American English Grammar
A common source of confusion is whether ‘either’ should be followed by a singular or plural verb.
Understanding this requires a closer look at grammatical rules and context.
Singular Usage
When ‘either’ refers to one of two things, it is typically singular:
- Correct: “Either of the books is interesting.”
- Incorrect: “Either of the books are interesting.”
Plural Perception
In some contexts, especially in informal speech, ‘either’ might be followed by a plural verb. This usually happens when the focus is on the plural noun that follows ‘either of’:
- Example: “Either of the solutions work for me.”
Note: While this might be accepted in casual conversation, formal writing prefers the singular form.
The Rule of Thumb for ‘Either’
A simple guideline to remember is:
- Use a singular verb when ‘either’ is followed by a singular noun or pronoun.
- Use a singular verb when ‘either’ is part of the phrase ‘either of the’.
Examples of Correct Usage
- “Either of the two candidates is qualified.”
- “Is either option feasible?”
Mnemonics to Remember
- Either Is (EI) for singular.
- Either Are (EA) for remembering informal plural usage but knowing it’s less formal.
Exceptions in Spoken and Informal Language
Language is fluid, and spoken English often bends rules for ease and natural flow. There are notable exceptions where strict grammatical rules are relaxed.
Informal Speech
In everyday conversation, people often use plural verbs with ‘either’ to sound more natural:
- Example: “Either of the kids are coming to the party.”
Impact on Grammatical Correctness
While these exceptions are common, they should be used cautiously in professional or academic contexts.
Quote: “Language evolves with its speakers, but understanding the rules gives you the power to use them effectively.” – John McWhorter
Formal vs. Informal Speech: What’s the Consensus?
Understanding the difference between formal and informal contexts is crucial for using ‘either’ correctly.
Formal Speech
In formal writing or speech, adhering to grammatical rules is important:
- “Either of the proposals is viable.”
Informal Speech
In casual settings, flexibility is allowed:
- “Either of the movies are good.”
Table: Formal vs. Informal Usage
Context | Example (Formal) | Example (Informal) |
Academic Writing | “Either of the theories is sound.” | “Either of the ideas are fine.” |
Everyday Speech | “Is either plan approved?” | “Are either of the plans okay?” |
Common Usage Scenarios for ‘Is Either of You’
Understanding the proper context for “Is either of you” can enhance clarity and correctness.
Appropriate Situations
- When addressing two people directly:
- “Is either of you coming to the meeting?”
- When asking about availability or participation:
- “Is either of you available for a quick call?”
Examples from Literature and Media
- “Is either of you responsible for this task?” (from a business email)
- “Is either of you my contact person?” (from a service interaction)
When ‘Are Either of You’ is More Organic
There are scenarios where “Are either of you” feels more natural, especially in spoken English.
Natural Flow in Conversation
- “Are either of you planning to attend?”
- “Are either of you free this weekend?”
Cultural Nuances
Different regions might have varying acceptance levels for this usage. In some places, using a plural verb with ‘either’ might sound more conversational and less rigid.
Balancing Rules with Flow
It’s essential to strike a balance between grammatical correctness and the natural flow of conversation. Knowing when to prioritize one over the other is a mark of effective communication.
Practical Tips and Common Pitfalls
Do’s and Don’ts
Do’s:
- Use ‘is’ with ‘either of the’ in formal writing.
- Ensure clarity by maintaining consistency in verb usage.
Don’ts:
- Avoid mixing singular and plural verbs in formal contexts.
- Don’t let informal speech habits slip into professional writing.
Real-World Applications
Interactive Exercise
Identify the Correct Usage:
- “Either of the answers (is/are) correct.”
- “Is either of you interested?”
- “Are either of you going?”
Answers:
- is
- is
- are
Case Study: Business Communication A team leader noticed a drop in meeting attendance and decided to ask: “Is either of you attending the strategy meeting?” The formality here was essential to maintain professionalism and clarity.
People Questions
What Does “Either” Mean in English Grammar?
“Either” indicates a choice between two options or possibilities.
Is “Either” Singular or Plural?
“Either” is typically singular, but informal contexts may use it with plural verbs.
Can “Either” Be Used with Plural Nouns?
Yes, but the verb agreement should follow formal rules (e.g., “Either of the options is available”).
What’s the Difference Between “Is Either of You” and “Are Either of You”?
“Is either of you” is formal and grammatically correct; “Are either of you” is informal but commonly used in conversation.
How Do I Avoid Mistakes When Using “Either”?
Stick to singular verbs in formal writing and proofread carefully for consistency.
Conclusion
Mastering the use of ‘either‘ in American English grammar requires understanding its basic rules, recognizing exceptions, and knowing when to prioritize formal over informal usage.
By following the guidelines and examples provided, you can improve your grammatical precision and communication effectiveness.
Call to Action: Practice these rules in your daily writing and speech. Share your experiences or questions in the comments below to continue the conversation on effective grammar usage.