right与rightly 均可用作副词，表示“正确(地)”，常可互换，只是在非正式英语中多用 right。如：
They did quite right [rightly]. 他们做得很对。
The boy answered right [rightly]. 这孩子回答对了。
注：这样用的 right 通常只用于动词后，若用于动词前则要用rightly。如：
Everyone rightly feared the coming war. 人人都担心战争即将爆发，这是理所当然的。
The new law rightly emphasizes parental responsibility. 新法律合理地强调了父母的责任。
She rightly points to the inadequacy of the argument. 她准确地指出这个论点的不足之处。
Doctors have rightly stressed the importance of exercise. 医生适当地强调了锻炼的重要性。
People rightly insist on being treated as individuals. 众人坚持要获得独立个体的对待是正当的。
As you so rightly pointed out, our funds are not unlimited. 正如你正确指出的那样，我们的资金并不是无限的。
It was an ill-researched product that consumers rightly rejected. 顾客理所当然地不用这种研发不力的产品。
另外，用于句首也得用 rightly。如：
Rightly, he went with them. 他同他们一起去是对的。
另外，rightly 还可用于修饰形容词或副词。如：
Citizens in inner-city areas are desperately worried and rightly so. 旧城区的市民极为担心，这不是没有理由的。
British voters are rightly suspicious of attempts to save money in the area of education. 英国选民怀疑当局企图削减教育经费是有根据的。