due to可以看作是一个复合介词，介词后必须加名词或者动词的现在分词，所以due to后必须是某人或者是动词的现在分词，比如：Your failure is due to negligence。汉语译为：你的失败是由于粗心造成的。

这句话中，due to后面加的就是名词。再比如：Your grade is due to paying attention to your work。汉语译为：你们的成绩源自于你们的专心。在这句话中，due to后面加的是动词pay，所以用paying形式。

due to 由于…,归因于…;预定…由于…,归因于…;预定…

这里的 due 是形容词，意思是“预定的”，to 是动词不定式符号。 due to be published next week 可视为 which are due to be published next week 的省略形式。如：

She is due to be promoted. =She is due for a promotion.她应该获得升迁。

He excused his delay as due to the weather.

他解释说因天气不好所以耽搁了