Yo soy bebiendo agua is this grammatically correct

Incorrect

Explanation: The correct sentence should be: Yo estoy bebiendo agua.

Translation: I'm drinking water.

If you want to say "I'm drinking water", this shoud be "Yo estoy bebiendo agua". So, this is incorrect.

Hope this helps ^-^

corras is the only one that is informal but doesn't follow the suffix rule. correr is the verb. corre is the formal verb form. corra would be used as the formal is corre ended with an a.

your best bet would be corras, it's the only one that is informal but is still wrong