1. Basic Structure

The phrase “not only… but also…” is a correlative conjunction, meaning it connects two parts of a sentence that are similar or equally important. You use this to highlight two qualities, actions, or pieces of information, where the second part adds on to the first.

Structure:

Subject + not only + [first thing] + but also + [second thing]

2. Key Rules

Here are some important rules to follow:

• Keep Parallel Structure: Make sure both parts after “not only” and “but also” are in the same form. For example, if you’re using a noun after “not only,” use a noun after “but also.”
• Optional Comma: In longer sentences, you may add a comma before “but also” to help with readability, though it’s not required.

3. Examples to Clarify

Let’s look at examples to illustrate:

• Parallel Nouns:
  • She is not only a talented singer but also a skilled pianist.
    • Here, “singer” and “pianist” are both nouns.
• Parallel Adjectives:
  • The movie was not only exciting but also inspiring.
    • “Exciting” and “inspiring” are both adjectives.
• Parallel Verbs:
  • He not only writes stories but also directs movies.
    • “Writes” and “directs” are both verbs, creating a balanced and parallel structure.

4. Adding Emphasis

When “not only… but also…” is used at the beginning of a sentence, it emphasizes the statement more strongly. Note: When starting a sentence this way, invert the subject and verb that follow “not only.”

• Example:
  • Not only did she win the competition, but she also broke the record.

5. Practice Exercise

Fill in the blanks with appropriate words to practice:

1. She ______________ not only hardworking but also incredibly creative.
2. The team ______________ not only prepared well but also stayed focused during the event.
3. Not only ______________ he understand the problem, but he also found a solution.

Answers:

1. She is not only hardworking but also incredibly creative.
2. The team was not only prepared well but also stayed focused during the event.
3. Not only did he understand the problem, but he also found a solution.

6. Pro Tip to Remember

To keep this phrase balanced, remember: if you say “not only” with one form (like a verb or adjective), use that same form with “but also.”