depend on ***
depend upon *
rely on ***
rely upon

She would have to rely upon her mother even more.

Any such person relies upon the report at his own risk.

He'd have to rely upon the away team for that.

As ever, you are a man to be relied upon.

But how far was the man to be relied upon?

His name is George; you may rely upon him absolutely.

We can't rely upon military force alone to protect our country.

The running game is relied upon less than many would expect.

He could not rely too much upon his advantage in age.

It's difficult to rely upon a source that comes and goes.