I had a nice dream last night (Interrogative).
Didn't I had a nice dream last night?
Did not I have a nice dream last night?
Had not I have a nice dream?
Had I have a nice dream last night?
সঠিক উত্তর:
Did not I have a nice dream last night?
ব্যাখ্যা ও নোট:
Past Indefinite Tense (had মূল verb হিসেবে) হওয়ায় Interrogative করতে 'Did' আসবে এবং 'had' এর base form 'have' বসবে।