I found the following sentence on a movie. What I cannot understand is the usage of "do" in the following sentence. To understand the concept, I would really appreciate it if someone could tell me what are the differences between the following two sentences.
I do know the place
I know the place
"do" is an emphasiser, used to reinforce your statement or to counter someone else's belief or claim that you do not know the place.
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"do" is an emphasiser, used to reinforce your statement or to counter someone else's belief or claim that you do not know the place.