Can you help me draw these reactions with intermediates?

Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw the tetrahedral intermediate as it is first formed in the following reaction. - You do not have to consider stereochemistry. - Include all valence lone pairs in your answer. - Do not include counter-ions, e.g., Na+,I, in your answer. Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw the tetrahedral intermediate as it is first formed in the following reaction. +NaOH