not that I know of
used for answering that you think something is not true, although you are not completely certain
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used for answering that you think something is not true, although you are not completely certain
used for telling someone that you do not know the answer to their question when you are annoyed or surprised that they have asked you
used for telling someone that you know as little about something as they know
used as a way of saying that you do not know something
used for saying that you do not know the answer to a question, especially when you do not want to be helpful
used for showing that you think someone’s question is difficult to answer
used for saying in an annoyed way that you do not know something
used for emphasizing that you cannot remember or understand something at all
used when you do not understand what someone is talking about
used for saying that no one knows the answer to a particular question or knows what will happen in the future
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using the Internet where you work, during working hours, for activities which are not work-related
BuzzWord ArticleOpen Dictionary
… to reveal a small part of your intentions in order to attract support, without actually committing yourself to doing anything
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