No, the word overdue is not an adverb.The word overdue is an adjective.
The past tense of "overdue" is "overdue."
By that it means overdue as in you have to pay to stop it from being overdue so basically its expired why whats overdue because it depends
Spongebob squarepants
The library charges a fine for each book that is returned overdue.
The library fined me for returning my books overdue.
nonshort overdue ;)
long-overdue
Say "Your account is overdue."
"Overdue" can function as an adjective or an adverb.
The homonym for "overdue" is "overdo." "Overdue" means something that is late, while "overdo" means to do something excessively.
I received a letter saying my bills were overdue.