Hello, * He said to her, "Madam, my daughter forgot to send a medical certificate with her application." (Direct Form) It says in my book that you have to omit this 'Madam' with 'respectfully' while converting into indirect speech. However, I converted it as, * He said to her respectfully that her daughter had forgotten to (send/sent) a medical certificate with her application. (Indirect Form) Which verb (sent/sent) do I have to use in above sentence. It is confusing me and no anything is written in my book that could clear my concept.