Мы обычно завершаем проекты к пятнице.

From Lesson 283:Deadlines (к)·Russian

Breakdown of Мы обычно завершаем проекты к пятнице.

мы
we
обычно
usually
пятница
Friday
проект
the project
к
by (a deadline)
завершать
to complete

Questions & Answers about Мы обычно завершаем проекты к пятнице.

Why do we use к here instead of в for Friday?
If we said в пятницу (using the Accusative case), it would mean the projects are completed on Friday. Using the preposition к with the Dative case (к пятнице) changes the meaning to by Friday, establishing a clear deadline.
Since completing a project implies a finished result, why is the verb завершаем in the imperfective aspect?
You are right that reaching a finished result usually calls for a perfective verb. However, the word обычно (usually) tells us this is a repeated, habitual action. In Russian, recurring actions almost always require the imperfective aspect, even if they describe completing a task.
Could I say заканчиваем instead of завершаем?
Yes, absolutely. Заканчивать (to finish) and завершать (to complete/conclude) are synonyms. Завершать sounds slightly more formal or professional, making it a very natural fit for workplace contexts like finishing projects.
Is проекты in the Nominative or Accusative case here?
It is in the Accusative case because it is the direct object of the verb (the thing being completed). Because проект is an inanimate noun, its Accusative plural form looks exactly identical to its Nominative plural form.

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