Questions & Answers about Где ты покупаешь воду?
Why is the word for water воду and not вода?
The word вода is the direct object here (the thing being bought), so it needs to be in the accusative case. For feminine nouns ending in -а, this means changing the ending to -у. Even though water is an inanimate object, feminine words still change their endings in the accusative case!
Why does the verb end in -ешь?
The dictionary form of the verb is покупать (to buy). Because the subject of the sentence is ты (you, informal), we change the verb ending to match it, making it покупаешь.
Where is the word for 'do' in the Russian sentence?
Russian does not use helping verbs like 'do' or 'does' to ask questions. You simply use the question word Где (where) followed by the subject and the verb. Literally, this translates to 'Where you buy water?'.
Could I change the word order to Где ты воду покупаешь?
Yes, you can! Russian word order is very flexible. Putting воду at the very end places a little extra focus on the fact that you are buying water, but moving it before the verb sounds completely natural too.