My car will not go forward what can it be
your stuck in parking
Put it in drive.
You need a little bit more information for people to answer questions like that.
Sounds like you need your transmission repaired or replaced, hope you have a lot of $$. Before you take it anywhere (in reverse, of course), check the tranny fluid.
Transmission, still in park, in neutral, handbrake is on, haven't turned the car on, no fuel, no drivetrain. Lots of reasons.