We do if there exist microorganisms on Earth that can survive and multiply in the atmosphere of Venus. (The upper layers aren't nearly as harsh an environment as at ground-level, though I don't know if it's survivable by anything Earth-native.)
It has water (according to wikipedia), just not very much in comparison to the Earth.
In theory, some hypothetical life form could convert sulfuric acid to water, but I have no idea if such a thing is possible or currently exists on Earth.
> The concentration of water vapor (a greenhouse gas) varies significantly from around 10 ppm by volume in the coldest portions of the atmosphere to as much as 5% by volume in hot, humid air masses, and concentrations of other atmospheric gases are typically quoted in terms of dry air (without water vapor).
