Mastering the wrong use of conjunctions is essential for improving your English grammar, sentence structure, and writing fluency. In this comprehensive bilingual guide, we break down critical grammar rules, common errors, and correct sentence structures for correlative conjunctions like So... as, As... as, Either... or, and Neither... nor.
Conjunctions are the glue that holds our sentences together, but misusing them can completely change your meaning or result in ungrammatical English. If you want to refine your overall sentence mechanics, you might also want to review our guide on Errors in Conditional Sentences.
What is the Difference Between "So... as" and "As... as"?
Many English learners use these two correlative conjunctions interchangeably, but precise English grammar rules dictate specific contexts for each:
- As... as is used in positive sentences.
- So... as is used in negative sentences.
(এই দুইটি correlative conjunction অনেকেই interchangably ব্যবহার করলেও precise usage অনুসারে as... as ব্যবহৃত হয় positive ক্ষেত্রে এবং So... as ব্যবহৃত হয় negative ক্ষেত্রে।)
| Incorrect Usage (Wrong) | Correct Usage (Right) | Rule Applied |
|---|---|---|
| Belal is not as tall as his father. | Belal is not so tall as his father. | Negative sentence requires so... as. |
| Rina is so beautiful as Bina. | Rina is as beautiful as Bina. | Positive sentence requires as... as. |
The second as of this conjunction should not be omitted under any circumstances. (এই Conjunction টির দ্বিতীয় as টিকে কোন অবস্থাতেই বাদ দেওয়া চলবে না।)
Examples of Avoiding Omission Errors
- Wrong: Harun is as reliable and sometimes more reliable than his brother.
- Right: Harun is as reliable as and sometimes more reliable than his brother.
Additionally, as can never be used as an alternative to that or whether. (As কে কখনো that বা whether এর বিকল্প হিসেবে ব্যবহার করা যাবে না।)
- Wrong: I don't know as I should go.
- Right: I don't know whether / that I should go.
How to Use "Either... or" and "Neither... nor" Correctly
These two conjunctions are used only for two persons or two objects. None of these can be used for more than two persons or objects. Moreover, either is usually used in a positive sentence and neither is usually used in a negative sentence.
(এ দু'টি conjunction কেবলমাত্র দু'জন ব্যক্তি কিংবা দু'টি বস্তুর ক্ষেত্রে ব্যবহৃত হয়। দু'য়ের অধিক ব্যক্তি বা বস্তুর ক্ষেত্রে এদের কোনটাই ব্যবহার করা যাবে না। তাছাড়া either ব্যবহৃত হয় সাধারণতঃ positive sentence-এ এবং neither ব্যবহৃত হয় সাধারণত: negative sentence-এ।)
Examples with Two vs. More Than Two Subjects
- Wrong: Either Helal, Belal, or Jalil will go there.
- Right (Three subjects): Helal, Belal, or Jalil will go there.
- Right (Two subjects): Either Helal or Belal will go there.
Examples with Positive and Negative Sentences
- Wrong: Either Helal or Belal is not honest. (Mixing 'either' with a negative verb)
- Right: Neither Helal nor Belal is honest.
- Wrong: He will marry neither Rina, Bina, nor Nazma. (Using neither for three persons)
- Right: He will marry neither Rina nor Bina.
- Right: He will marry none of Rina, Bina and Nazma.
What is the Rule for Verbs and Pronouns After "Either" and "Neither"?
After either or neither, the verb or pronoun must be used on the basis of the second subject (proximity rule).
(Either কিংবা neither-এর পরে verb কিংবা pronoun ব্যবহৃত হবে দ্বিতীয় subject-এর ভিত্তিতে।)
- Wrong: Neither Belal nor Bina were in their office.
- Right: Neither Belal nor Bina was in her office. (Because the second subject 'Bina' is singular and feminine).
Key Takeaways
- Use as... as for positive comparisons and so... as for negative comparisons.
- Never omit the second as in comparative structures.
- Never substitute as in place of that or whether.
- Restrict either... or and neither... nor strictly to two persons or objects.
- Match verbs and pronouns to the second subject when using correlative conjunction pairs.
Quick Practice
Test your understanding of these rules by correcting the following sentences. Write your answers in the comments section below:
- She is not so smart as her sister. (Is this correct or incorrect? Explain why.)
- Neither the teacher nor the students was present in the room.
Frequently Asked Questions
Can "either... or" be used for three options?
No. Either... or and neither... nor are strictly limited to two items, people, or alternatives. For three or more options, use alternatives like "any," "anyone," or "none."
Why can't "as" be used instead of "whether"?
In standard English grammar, as functions as a preposition, adverb, or conjunction of time/manner, but it lacks the interrogative or conditional force required to introduce a doubt or choice that whether or that provides.