Change the underlined part of the '-ing clause' with 'adjective + to…

The correct answer is Option (3) → Namita wasn't ashamed to commit the mistake.

An adjective is a word that describes a noun or a pronoun, for example a tall tree, the food is tasty.

Adjective + preposition + -ing → adjective + to-infinitive:

• Some adjectives of feeling (ashamed, afraid, proud, happy) can take either preposition + -ing or a to-infinitive.
• The change:
  • The preposition "of" is dropped.
  • The -ing form "committing" becomes "to commit", the same verb.
  • The rest of the sentence stays as it is.
• This sentence: "ashamed of committing" → "ashamed to commit": "Namita wasn't ashamed to commit the mistake."

Why the Other Options are Incorrect?

Option 1: Namita was not ashamed to make the mistake. — Incorrect. It changes the verb "commit" to "make". The task is to change only the form of the same verb.

Option 2: Namita had no shame to commit the mistake. — Incorrect. It replaces the adjective "ashamed" with the noun "shame", so it is not adjective + to-infinitive.

Option 4: Namita wasn't ashamed that she had to commit the mistake. — Incorrect.

• It uses a that-clause, not a to-infinitive.
• "Had to commit" adds the idea that she was forced to, which changes the meaning.