English Reference

Phrasal verb

run out

Irregular verb

Forms

Infinitive

run out

Past

ran out

Past participle

run out

Definition

phrasal verb. to use all of something so that there is none left. You use this when a supply of food, money, or time finishes.

phrasal verb. to exhaust a supply of something or to reach the end of a period of validity. The verb functions intransitively when the subject is the supply itself, such as time or a resource.

Examples

“We need to go shopping because the milk has run out.”

“I was in the middle of writing my essay when the battery on my laptop ran out.”

“The legal team warned that if the contract were allowed to run out without a renewal clause, the company would lose its primary distribution rights.”

Examples

simple

“We need to go shopping because the milk has run out.”

contextual

“I was in the middle of writing my essay when the battery on my laptop ran out.”

complex

“The legal team warned that if the contract were allowed to run out without a renewal clause, the company would lose its primary distribution rights.”

Usage

When you want to mention the item that is finished, you must add 'of' after the phrase.

Teaching tip

Distinguish between the intransitive 'the time ran out' and the transitive-like 'we ran out of time' to help students master the prepositional requirement.

Pitfall

We ran out the coffee.

We ran out of coffee.

When followed by an object, the phrase requires the preposition 'of' to connect the verb to the noun.

Phrasal verb

Particles

out

Separability

inseparable

Pattern

run + out

Synonyms

Antonyms

Grammar

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Very common
Level
B1 · Intermediate
Updated

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English Reference