Affirmative to Negative: Rule 1: Only/ alone/ merely → স্থানে→ None but(ব্যক্তি)/ nothing but(বস্তু)/ not more than or not less than(সংখা) Ex: Aff: Only Allah can help us. Neg: None but Allah can help us. Aff: He has only a ball. Neg: He has nothing but a ball. Aff: He has only ten taka. Neg: He has not more than ten taka. Rule 2: Must/Have to /Has to → স্থানে → Cannot but+মূল verb/ Cannot help+ (v+ing). Ex: Aff: We must obey our parents. Neg: we cannot but obey our parents/ we cannot help obeying our parents. Rule 3: Both----and → স্থানে → not only ---- but also. Ex: Aff: Both Dolon and Dola were excited. Neg: Not only dolon but also Dola were excited Rule 4: and (যদি দুটি শব্দ যোগ করে) →স্থানে → Not only ----- but also. Ex: aff: He was obedient and gentle. Neg: He was not only obedient but also gentleRule 5: Everyone/ everybody/every person/ (every + common noun)/all → স্থানে → There is no + attached word + but. Ex: Aff: Every mother loves her child. Neg: Ther...