English version

not that I know of

From Longman Dictionary of Contemporary Englishnot that I know ofnot that I know ofused to say that you think the answer is ‘no’ but there may be facts that you do not know about ‘Did he call earlier?’ ‘Not that I know of.’ know
Examples from the Corpus
not that I know of"Did anyone call for me?" "Not that I know of."Answer, not that I know of.
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