Car not starting

What is wrong with the car if it’s turning but it’s not starting?

No fuel, no spark, no air, or no compression.

could it be the timing chain…and if the timing chain has gone bad does that mean my engines no good?

It could be the chain. But chains aren’t like belts. When they are about to break, they’ll let you know. A lot of clatter and when it does break you can probably hear it.

Not sure if this is an interference engine or not. Either way if it is the chain it’s going to be expensive to fix.