Бути (to be) in Ukrainian

In Brief

In ordinary Ukrainian present-tense sentences, бути (“to be”) is usually left out: Я студент means “I am a student,” and Вона втомлена means “She is tired.” In the past, use був, була, було, були; in the future, use буду, будеш, буде, будемо, будете, будуть. The present form є exists, but it is not a general replacement for English “am,” “is,” and “are.”

Overview

Бути is the Ukrainian infinitive (the basic dictionary form of a verb) meaning “to be.” It links a person or thing to an identity, quality, state, or location. This is an A1 topic because it is needed for introductions, descriptions, and basic statements about where someone is.

The main difference from English appears in the present tense. English requires “am,” “is,” or “are,” but Ukrainian normally uses a zero copula: the linking verb is understood even though no word is spoken or written. Thus Ми вдома is a complete sentence meaning “We are at home.” It is not an abbreviated or careless version of a longer sentence.

Past and future statements work differently: a form of бути is normally present. In the past, its form agrees with the subject’s grammatical gender or number. In the future, it changes according to person and number, much as English distinguishes “I am” from “you are,” but with a fuller set of endings.

How It Works

The beginner rule: omit it in the present

For a neutral present-tense statement, put the subject directly before the identity, description, state, or location:

Meaning	Ukrainian pattern	Example
identity	subject + noun	Олена лікарка. — Olena is a doctor.
description	subject + adjective	Кава гаряча. — The coffee is hot.
state	subject + state word	Я готовий. — I am ready.
location	subject + place expression	Діти в школі. — The children are at school.

A subject is the person or thing the sentence is about. An adjective is a describing word such as “ready,” “new,” or “interesting.” Ukrainian adjectives must agree with the noun they describe in gender and number: Він готовий, Вона готова, Воно готове, Вони готові.

Questions follow the same basic rule. Ukrainian does not insert an equivalent of English “is” and does not reverse the subject and verb:

• Ти студент? — Are you a student?
• Вона вдома? — Is she at home?
• Ви готові? — Are you ready?

In speech, intonation can mark the question. In writing, the question mark and context do the work.

Present-tense negation

To make an ordinary present statement negative, place не before the word or phrase being denied:

• Я не лікар. — I am not a doctor.
• Вона не втомлена. — She is not tired.
• Ми не вдома. — We are not at home.

Do not add a form of бути merely because English has “am not” or “is not.” For absence or nonexistence, Ukrainian often uses немає instead: Марії немає вдома means “Mariia is not at home” or “Mariia isn’t in.” This construction also changes the form of the noun or name and belongs with existential constructions, so at A1 it is enough to learn common phrases such as У мене немає часу (“I have no time”).

What does є mean?

Є is the modern present-tense form of бути. It is the same for every person and number:

• У місті є музей. — There is a museum in the city.
• У нас є час. — We have time. Literally, “At us there is time.”
• Це і є проблема. — That is precisely the problem.

It is especially natural when asserting existence, availability, or presence, and in patterns that add emphasis. It may also appear as a linking verb in definitions, formal prose, or deliberate emphasis: Київ є столицею України (“Kyiv is the capital of Ukraine”). In a simple everyday description such as Я студент, however, adding є often sounds unnecessary or marked. A safe beginner habit is: omit the present copula in identities and descriptions; learn є first in “there is/are” and possession patterns.

Past tense: був, була, було, були

The past tense does not change for “I,” “you,” or “he” as separate persons. Instead, it agrees with the subject’s gender in the singular and uses one form for all plurals.

Subject	Form	Example
masculine singular	був	Він був удома. — He was at home.
feminine singular	була	Вона була удома. — She was at home.
neuter singular	було	Море було спокійне. — The sea was calm.
plural	були	Ми були разом. — We were together.

With я and ти, choose the form according to the person referred to: a man says Я був, while a woman says Я була. Likewise, Ти був? addresses a male person and Ти була? addresses a female person.

Negation is straightforward: put не before the verb.

• Я не був там. / Я не була там. — I was not there.
• Вони не були готові. — They were not ready.

Future tense: буду and its forms

The future of бути has six person-and-number forms. Person simply means whether the subject is “I/we,” “you,” or “he/she/it/they.”

Person	Singular	Plural
first	я буду	ми будемо
second	ти будеш	ви будете
third	він / вона / воно буде	вони будуть

Examples include Я буду вдома (“I will be at home”), Ти будеш готова? (“Will you be ready?”), and Вони будуть тут (“They will be here”). Unlike the past forms, future forms do not show gender: everyone uses я буду.

To negate the future, add не:

• Він не буде на роботі. — He will not be at work.
• Ми не будемо самі. — We will not be alone.

Forms after бути

In a present-tense sentence with the copula omitted, an identity noun usually has its basic nominative case (the form generally used for the subject): Вона лікарка. After an explicit form of бути, especially in careful or formal language, a profession, role, or status often appears in the instrumental case (a noun form ending commonly in -ом, -ем, -ою, among others):

• Він був учителем. — He was a teacher.
• Вона буде директоркою. — She will be a director.
• Київ є столицею України. — Kyiv is the capital of Ukraine.

This case choice is an important later topic. Beginners can first memorize whole phrases. With adjectives describing a temporary state, both patterns such as Він був втомлений and Він був втомленим occur; the choice can depend on syntax, emphasis, and style. Do not assume that every word after був must mechanically receive one ending.

Examples in Context

Ukrainian	English	Note
Я вчитель.	I am a teacher.	Present identity; no copula
Вона втомлена.	She is tired.	Feminine adjective
Ми зараз у Києві.	We are in Kyiv now.	Present location
Ця книжка цікава.	This book is interesting.	The adjective agrees with feminine книжка
Ти готовий?	Are you ready?	Addressing a male person
Ні, я не готова.	No, I am not ready.	Spoken by a female person
У кімнаті є стіл.	There is a table in the room.	є asserts existence
У вас є хвилина?	Do you have a minute?	Common possession pattern
Я був удома.	I was at home.	Masculine speaker
Учора вона була зайнята.	She was busy yesterday.	Feminine past form and adjective
Діти були в парку.	The children were in the park.	Plural past form
Буде добре.	It will be okay.	Subjectless everyday expression
Завтра я буду в офісі.	Tomorrow I will be at the office.	First-person future
Ви будете готові о восьмій?	Will you be ready at eight?	Plural or polite ви
Вона буде лікаркою.	She will be a doctor.	Role expressed in the instrumental case

Common Mistakes

Translating every English “am, is, are” with є

• Unnatural as a neutral introduction: Я є студент.
• Natural: Я студент.
• Why: Ukrainian normally has no spoken copula in a simple present identity. Є has real uses, but it is not inserted automatically wherever English requires “be.”

Leaving out бути in the past or future

• Wrong: Учора я вдома. when you mean “Yesterday I was at home.”
• Right: Учора я був удома. / Учора я була вдома.
• Why: The zero-copula rule applies to the present, not generally to past or future time.

Choosing a past form by person instead of gender

• Wrong: Вона був втомлена.
• Right: Вона була втомлена.
• Why: Singular past forms agree with gender: був masculine, була feminine, було neuter. The plural form is були.

Making the future agree with gender

• Wrong: Вона була завтра вдома. when you mean “She will be at home tomorrow.”
• Right: Вона буде завтра вдома.
• Why: Була is past feminine. The future form for all third-person singular subjects is буде.

Forgetting adjective agreement when the verb disappears

• Wrong: Вона готовий.
• Right: Вона готова.
• Why: Omitting “is” does not remove agreement. The adjective still matches the subject: готовий, готова, готове, готові.

Using nominative forms in every explicit бути construction

• Basic but limited: Він був учитель.
• Standard role expression: Він був учителем.
• Why: A profession, function, or role after explicit бути commonly takes the instrumental case. At first, learn frequent combinations as complete chunks rather than trying to guess every ending.

Usage Notes

English speakers often feel that Я студент is missing a verb. Resist the urge to repair it: for a Ukrainian speaker, it is a normal complete present-tense sentence. Word order can vary for focus, but Я студент is the safest neutral order for a beginner.

Ukrainian commonly distinguishes вдома and удома, both meaning “at home.” The initial sound may alternate to make speech flow more smoothly; both forms are standard. Likewise, в and у can alternate in many location phrases.

The polite singular ви takes plural agreement: Ви були в Києві? and Ви будете вільні? In respectful writing, it may be capitalized as Ви when addressing one specific person. The verb forms remain plural even though only one person is addressed.

In conversation, буде appears in useful fixed responses: Буде добре (“It’ll be okay”), Так і буде (“That is how it will be”), and Не буде проблем (“There won’t be any problems”). These are worth learning as whole phrases.

Beyond the Basics / Advanced Use

You do not need to master these points at A1, but they explain forms you will meet later.

First, the future forms of бути also act as an auxiliary verb (a helping verb used to build another verb form): Я буду працювати means “I will work,” and Вони будуть чекати means “They will wait.” Here бути does not describe identity or location; it helps form the imperfective future, often used for an ongoing or repeated future action.

Second, explicit є can change the information focus. Compare У кімнаті стіл, which may simply describe the room, with У кімнаті є стіл, which clearly asserts that a table is present. In Це і є відповідь (“That is precisely the answer”), є works with і to identify something emphatically. Formal definitions also retain it more often than casual conversation.

Third, Ukrainian has older present-tense forms of бути, including єси and єсть. They may occur in religious, historical, poetic, dialectal, or deliberately archaic language. They are not part of the neutral modern A1 paradigm, so do not use them as everyday equivalents of “are” or “is.”

Finally, case choice after linking verbs carries stylistic and semantic detail. The instrumental is strongly associated with a role, capacity, profession, or changing state: Вона була моєю вчителькою (“She was my teacher”). Nominative patterns also occur, particularly with classifications, names, quotations, and some conversational structures. Treat the instrumental as the key productive pattern after explicit бути, while noticing complete sentences in real use rather than forcing a single rule onto every complement.

Practice Tips

1. Build a three-time-line drill. Take one idea and say it in the present, past, and future: Я вдома — Я був/була вдома — Я буду вдома. This makes the present omission visible and fixes the other forms in memory.
2. Practice past forms with people and things. Make four cards for був, була, було, були, then pair each with a suitable subject: брат був, сестра була, кафе було, друзі були.
3. Listen for absence as well as presence. When reading or listening, mark present descriptions with no verb and collect genuine examples of є separately. This prevents the English habit of adding є everywhere.

Related Concepts

• Prerequisite: Personal Pronouns — helps you connect я, ти, він, вона, ми, ви, вони with the correct past and future forms.
• Next step: Existential Constructions — develops uses of є, немає, and patterns meaning “there is/are” or expressing possession.
• Later connection: Impersonal Constructions — explains sentences such as Буде добре, where no ordinary personal subject is stated.