Log inSign up

Я останусь в офисе до конца дня.

Я останусь в офисе до конца дня.
I will stay in the office until the end of the day.

Breakdown of Я останусь в офисе до конца дня.

я
I
в
in
день
the day
офис
the office
конец
the end
остаться
to stay
до
by / before
Elon.io is an online learning platform
We have an entire course teaching Russian grammar and vocabulary.

Start learning Russian now

Questions & Answers about Я останусь в офисе до конца дня.

Why is останусь used here instead of буду + verb (like буду оставаться)?

Останусь is the perfective future form of остаться. Perfective usually presents the action as a single, complete result: I will stay / I’ll remain (and not leave).
Буду оставаться uses the imperfective оставаться and focuses more on the process/ongoing state (often sounding more descriptive or contextual): I’ll be staying (for a while / as a general plan). In many everyday contexts, я останусь is the most natural, straightforward choice.

What is the infinitive of останусь, and how is it conjugated?

The infinitive is остаться (perfective).
останусь is 1st person singular future: я останусь = I will stay.
Other forms (useful to recognize):

  • ты останешься
  • он/она останется
  • мы останемся
  • вы останетесь
  • они останутся
Why is it в офисе and not в офис?

Because в офисе is location (where you are), using the prepositional case after в: in the office.
в офис would mean motion into the office (destination) and uses the accusative: I’ll go into the office / to the office.

What case is офисе, and what does that ending tell me?

офисе is prepositional singular of офис (a masculine noun).
The ending -е is a common prepositional singular ending for many masculine and neuter nouns: в офисе, в городе, в окне, etc.

Why does до require конца (and дня)—what case is that?

до (meaning until / up to) typically requires the genitive case.
So:

  • конец → до конца (genitive singular)
  • день → до дня (genitive singular), but here it’s до конца дня = until the end of the day.
What’s the grammatical structure of до конца дня?

It’s essentially: до + [genitive noun phrase].
Inside that phrase, дня depends on конца: конец (чего?) дня = the end (of what?) of the day.
So the whole chunk works as one time expression: until the end of the day.

Can I omit Я? When is it necessary?

Yes, often you can omit Я because the verb ending already shows the subject: останусь implies I.

  • Останусь в офисе до конца дня. sounds natural in conversation.
    You keep Я for emphasis/contrast, for example: Я останусь, а ты можешь идти. = I’ll stay, and you can go.
Is the word order flexible? Could I say До конца дня я останусь в офисе?

Yes, word order is flexible. Different orders emphasize different parts:

  • Я останусь в офисе до конца дня. neutral
  • До конца дня я останусь в офисе. emphasizes the time limit (until the end of the day)
  • В офисе я останусь до конца дня. emphasizes the place (in the office)
How do I pronounce останусь and where is the stress?

Stress: останУсь (stress on -ну-).
Rough guide: ah-stah-NOOS’ (the final -сь softens the sound).
Also: концА (stress on the last а), дня is a single syllable (like dnya).

What’s the difference between остаться and оставаться in meaning?
  • остаться (perfective): focuses on the decision/result not to leave (a completed choice). Often used for a specific situation: I’ll stay (this time).
  • оставаться (imperfective): focuses on the state/process of remaining. Used for ongoing descriptions, habits, or when the process matters: I stay / I’m staying / I used to stay (depending on tense/context).
Could this sentence imply “I will stay behind (and others leave)”?

Yes, it can. Остаться often carries the idea of remaining while someone else leaves or not going when departure is expected. Context decides:

  • If others are leaving the office, я останусь can imply I’ll stay behind.
  • If it’s just scheduling, it simply means I’ll remain in the office.
How would I make it more specific, like “until the end of the working day” or “until tonight”?

Common options:

  • Я останусь в офисе до конца рабочего дня. = until the end of the working day
  • Я останусь в офисе до вечера. = until evening
  • Я останусь в офисе до ночи. = until night (late)
  • Я останусь в офисе до сегодняшнего вечера. = until this evening (more specific)
Is до конца дня the same as весь день?

Not exactly:

  • до конца дня = until the end of the day (you might have started earlier, or you’re speaking from now until day ends)
  • весь день = all day (the whole day as a duration)
    Example contrast:
  • Я останусь в офисе до конца дня. (from now until day ends)
  • Я весь день в офисе. / Я буду в офисе весь день. (all day long)