Translation:I drink water.
Good question, but... No. It's not like French, sorry learner!
To express that you're doing something right now, you can use "在 / Zài" + something.
在 / Zài -- can be translated as a "be" verb or more:
and so on, As a preposition:
You can see more examples at:
Using Verb Tenses in Chinese -- Read the "Continuing Actions" section.
I think it's because in Chinese, many verbs require a noun. For example if you want to say "eat" you can't just say 吃， you have to add a noun. Since rice 饭 is the most common food in China, to simply say "eat" is to "eat rice - 吃饭＂。 I am guessing it works the same way with water 水。 To simply say "drink", you need to add the most common beverage which is water.