Assertive to Interrogative: ** Present Form=Don't ? ** Past Form=Didn't ? ** Verb+s/es=Doesn't ? ** Auxiluary Verb= Auxiluary Verb+n't? ** Every/Some/All/Body=Who ? Rule 1: যদি sentence টি affirmative হয় তাহলে negative interrogative করতে হবে.আর যদি negative  হয় affermative interrogative করতে হবে। Ex: Ass: He was very gentle. Int: was n’t he very gentle? Aff: He is not a good person. Int: Is he a good person? Rule 2: যদি auxiliary verb না থাকে → 3 / 10 Present form হলে Do/ Don’t Past form হলে Did/Didn’t. Verb+s,es হলে Does/Doesn’t Ex: Ass:He plays Football. Int: Doesn't he play football? Ass: They did not play football yesterday. Int: Did they play football yesterday? Rule3: Never → স্থানে → Ever. Ass: I never drink tea. Int: Do I ever drink tea? Rule 4: Every body/everyone/ All → স্থানে → Who + Don’t/ Doesn’t/ Didn’t Ex: Everybody wishes to be happy. Int : Who doesn’t wish to be happy? Rule 5: Every + noun → স্থানে → Is there any + noun+ Who don’t/doesn’t/ didn’t....