Translation:I can't attend the art class tomorrow.
I can not go to art class tomorrow
This should be accepted too
This may be regional but "arts class" should be accepted
Tomorrow I can't attend art class.
Tomorrow I cannot attend art class
I can't attend the art lesson tomorrow.
This should be accepted.
the art class? Who speaks like that?
Are you a native speaker of English? What would you say?
Just art class. No 'the'.