Breakdown of Завтра водитель доставит груз из трёх контейнеров поставщику.
три
three
завтра
tomorrow
водитель
driver
из
out of
Questions & Answers about Завтра водитель доставит груз из трёх контейнеров поставщику.
Why is it трёх контейнеров and not три контейнера?
The preposition из requires the genitive case. The number три changes to its genitive form трёх. When numbers 2, 3, and 4 are in oblique cases (any case other than nominative or inanimate accusative), the noun following them no longer takes the genitive singular. Instead, it must match the number's case in the plural. Therefore, we use the genitive plural контейнеров.
Why do we use the preposition из here instead of just using the genitive case to mean 'of'?
While the genitive case alone often translates to 'of' to show possession, Russian commonly uses из plus the genitive case to describe what something is made of or consists of. Here, груз из трёх контейнеров means a cargo consisting out of three containers.
Is доставит a perfective or imperfective verb?
It is perfective. It is the conjugated future tense of доставить. We use the perfective aspect here because the delivery is a single, completed action that will happen in the future. If the driver were delivering cargo regularly, we would use the imperfective future: будет доставлять.
Why does поставщик change to поставщику?
Поставщику is in the dative case because it is the indirect object, the recipient of the delivery. The verb доставить (to deliver) takes the accusative case for the object being delivered (груз) and the dative case for the recipient.