1 Did the researcher have to include various significant findings of his observations into the report?
2 Does the surgeon have to extend his investigations to make a proper conclusion at present?
3 Do we have to increase the amount of food given to this patient?
1 The researcher didn’t have to include various significant findings of his observations into the report.
2 At present the surgeon doesn’t have to extend his investigations to make a proper conclusion.
3. We don’t have to increase the amount of food given to this patient.