Usage of 'due to': William came late due to an accident.

[Mofli]

Hello, according to my textbook this sentence is incorrect.

William came late due to an accident.

the correct answer is: William came late because of an accident.

Does that mean you can use due to only after the verb to be? thanks a lot.

[Kitosdad]

William came late, due to an accident. This is acceptable English.

A better way to say it is, "Due to having had an accident, William was/came late."
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