Both phrases express the same idea—a strong feeling of concern or uneasiness—but they differ in naturalness and usage in modern English.

1. “I’m really worried”

• Structure: Subject + verb (“I’m”) + adverb (“really”) + adjective (“worried”)

• Explanation:
  “Really” is a common intensifying adverb that makes the adjective “worried” stronger.

  People widely use this structure in spoken and written English. It sounds natural, emotional, and fluent.

Examples:

• “I’m really tired after the long day.”

• “She’s really excited about her new job.”

• “He’s really disappointed with the results.”

This adverb placement is standard when intensifying adjectives. Words like “really,” “very,” “so,” and “extremely” often appear before adjectives to enhance the meaning.

2. “I’m worried very much”

• Structure: Subject + verb (“I’m”) + adjective (“worried”) + adverbial phrase (“very much”)

• Explanation:
  “Very much” is an adverbial phrase that also expresses intensity. However, placing it after the adjective sounds overly formal or awkward in daily conversation.

Examples:

• “I’m worried very much about the project.” ❌

• “She appreciates your help very much.” ✅

• “I love you very much.” ✅ (Fixed expression)

While grammatically correct, “I’m worried very much” is not natural in informal English.

3. Comparing Adverbs and Adverbial Phrases

Adverbs (like “really” or “extremely”) usually modify adjectives directly and flow better:

• “I’m extremely grateful.”

• “They were really happy.”

Adverbial phrases (like “very much”) work better with verbs:

• “I appreciate your help very much.”

• “He worries about his job very much.”

4. When to Use Each

✅ Use “really” (or other strong adverbs) in everyday conversation.
✅ Use “very much” for emphasis with verbs or in formal writing.
❌ Avoid using “very much” after adjectives like “worried” in casual speech.

5. Conclusion

Both are technically correct. However, “I’m really worried” is the standard and natural choice in everyday English. Stick with it to sound fluent and native-like.

---

That vs which: https://grammarpuzzlesolved.englishlitnotes.com/that-vs-which/

The Clerk in The General Prologue:

https://englishlitnotes.com/2025/05/24/the-clerk-in-the-general-prologue/

The Hunger and Population Explosion:

https://englishwithnaeemullahbutt.com/2025/06/03/hunger-and-population-explosion/

Nathaniel Hawthorne and American Literature:

https://americanlit.englishlitnotes.com/nathaniel-hawthorne-and-american-literature/