Spanish help needed.

Hello, I translated the following sentences:
Do you want to go to the movies on Wednesday? to ?Quieres a ir al cine el miercoles?
And:
No, I cant. I have to work. to
No. Porque tengo trabajar
Is my translation correct?
Answer #1
1st is alright except miercoles that has an accent. “Mi�rcoles”
2nd I would translate more accurately into: “No, no puedo. Tengo que trabajar.”
Answer #2
Ok, thanks for your help.