My friend asked me about how to refer correctly to the cancellation of a class on Monday. The choices were:
1) We don't supposed to have class on Monday.
This choice was rejected since "don't" doesn't go together with "supposed" - they are in two different tenses.
2) We don't suppose to have class on Monday.
About this choice, even it looks grammatically correct I'm really having droughts about that if it does really pass the mentioned message, therefore I'm not sure if I can reject this choice or not.
3) We are not supposed to have class on Monday.
This is the way that I would choice naturally.
Is the second mentioned choice correct in that context or it is not?