For this sentence "I know about what we need."

I don't understand why we use "what" we need.

What is the function of "what" ?

Is it a pronoun?

Can we use "that" instead of "what"?

Could you please explain it to me?

And could you give me some examples about using clause after preposition?

1 Answer 1


Yes, it's pronoun.

No, you can't use that, not in a word-for-word exchange, although one could say:

"I know about that which we need."

That sounds a bit stilted, though, in my opinion. I think you'd be better off saying:

"I know what we need."

(There's no need for about in that sentence).

  • How about 'I know that thing we need'? Oct 30, 2013 at 9:53
  • 1
    @VijayaRagavan - I would say, "I know the thing we need..." (using the instead of that).
    – J.R.
    Oct 30, 2013 at 9:55

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .