Interrogative Pronouns:
* Function: They replace nouns or noun phrases and introduce questions.
* Examples: *who*, *whom*, *whose*, *what*, *which*
* Usage:
* Who is coming to the party? (Replaces the noun "person")
* What did you eat for breakfast? (Replaces the noun "food")
* Whose book is this? (Replaces the noun "book" and indicates possession)
Interrogative Adjectives:
* Function: They modify nouns or noun phrases and introduce questions.
* Examples: *which*, *what*
* Usage:
* Which car do you want to buy? (Modifies the noun "car")
* What time is it? (Modifies the noun "time")
Key Differences:
* Replacement vs. Modification: Pronouns replace nouns, while adjectives modify them.
* Direct Question: Pronouns are always used directly in a question, while adjectives can sometimes be used in statements.
* Standalone: Pronouns can stand alone (e.g., "Who is there?"), while adjectives always need a noun to follow (e.g., "Which car?").
In Summary:
Interrogative pronouns stand in for nouns and are the main part of a question. Interrogative adjectives modify nouns and help ask specific questions.