英语中怎么把否定句改成陈述句啊?

是可以用不同的词吗.如果可以 通常来说可以用反义的动词或形容词.比如,
I don't like him -> I dislike him,or I hate him,or I find him annoying.
He is not handsome -> He is average-looking.
I am not sure if he is right -> I suspect if he is right
其实跟中文一样.你就先把怎么用中文的陈述句表达想好,再翻成英文.