Rule: + had + subject + not + verb 3rd form + object?
Examples:
1. क्या राम घूमने नहीं गया था? Had Ram not gone for a walk?
2. क्या लोग स्टेज़ पर नहीं नाचे थे? Had people not danced on the stage?
3. उसने पत्र कब तक नहीं लिखा था? Until when had she not written the letter?