I can't seem to find an answer just by Googling, but I wondered which one is correct?:
I am sorry Jane was unable to attend school
I am sorry that Jane was unable to attend school
I don't like the way "that" sounds in the above example, but I can't find a grammar lesson which gives an answer, as the only ones I have found are to help with choosing between "that" and "which".
Apologies for my bad grammar in this message. I have a small child moaning in my ear right now and I can't concentrate!!!
Quite often, you can delete "that" with no loss of meaning. Americans delete it more than Brits - generally. Both versions are correct.
The rule is this: Use the version you think sounds best. If the "that" is required to eliminate some ambiguity or to make the sentence sound better, then use it.