When someone asks a question, is the reply, "That I don't know" correct? Or is the simpler "I don't know" a more correct or proper response?
Conversation – ‘I Don’t Know’ vs. ‘That I Don’t Know’
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When someone asks a question, is the reply, "That I don't know" correct? Or is the simpler "I don't know" a more correct or proper response?
Best Answer
Normally you just say:
Sometimes when you want to draw attention to the thing unknown, you might venture to add an object:
But it would be rare indeed to apply inversion to put the now-important bit first: