Interested in Language
Can we omit the relative pronoun 'that' in a cleft sentence when the focus is an adverbial of time? E.g. It was not until yesterday (that) I realized he was lying me?
Last edited by emsr2d2; 17-Aug-2015 at 21:24. Reason: Changed font to black to make it readable
I would not omit "that" in the context you describe.
Note also that you need "to" after "lying" in your example sentence.