Answer:
Bebes
Step-by-step explanation:
1. Remove the ending of the verb
First, take off the ending of the verb
Beber is the verb, and the ending is -er.
Beber-->beb
2. Add the correct ending
The subject in this is "tu", and the verb is an -er ending.
The correct ending is: -es
Beb-->bebes
Tú bebes toda el agua
You are drinking all the water