Your question is rather puzzling.We can see the Effect of the force of gravity. But how come we can't see the force itself?
Now you should know better than to start something like that in this thread. The OP appears to ask a rather elementary question about "force" in general. We should not complicate things further by bringing in General Relativity.Is it wrong to still think that gravity is bending of spacetime, because of mass? Or is the most common way (and most expected way) to think of gravity as gravitons, or a certain particle/wave that makes gravity?
I find the bending of spacetime so nice to think of that I want it to be that way.