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UK//aɪ mʌst hæv blækt aʊt//US//aɪ mʌst hæv blækt aʊt//

Meaning of I must have blacked out

To lose consciousness or memory temporarily.

In simple words: I lost my memory for a period of time.

I must have blacked out in a sentence

  • After the fall, I must have blacked out for a few minutes.
  • During the stressful presentation, I must have blacked out and forgot my lines.
  • I was so overwhelmed, I must have blacked out at the party last night.
  • When the car crashed, I must have blacked out instantly.
  • I don't remember anything from the concert; I must have blacked out.

How to use I must have blacked out

Used in informal contexts to describe temporary loss of consciousness or memory, often due to emotional or physical stress. Not suitable for formal writing.

Grammar pattern

standalone chunk

Memory hint

Imagine someone turning a light switch off (blacked out) and forgetting what happened in the dark.

Related words

Collocations with I must have blacked out

  • blacked out suddenly
  • blacked out completely
  • almost blacked out

Synonyms for I must have blacked out

  • lose consciousness
  • faint
  • pass out
  • zone out

Common mistakes with I must have blacked out

  • Confused with 'black out' as in to lose consciousness temporarily.
  • Using in overly formal situations where simpler language would suffice.
  • Misunderstanding it as permanent loss rather than temporary.

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I must have blacked out in other languages

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Frequently asked questions about I must have blacked out

What does I must have blacked out mean?

I lost my memory for a period of time.

What is the definition of I must have blacked out?

To lose consciousness or memory temporarily.

How do you use I must have blacked out in a sentence?

After the fall, I must have blacked out for a few minutes.

Can you give another example of I must have blacked out?

During the stressful presentation, I must have blacked out and forgot my lines.

What are synonyms for I must have blacked out?

Common alternatives include lose consciousness, faint, pass out, zone out.

What words go with I must have blacked out?

It commonly pairs with blacked out suddenly, blacked out completely, almost blacked out.

What are common mistakes when using I must have blacked out?

Confused with 'black out' as in to lose consciousness temporarily. Using in overly formal situations where simpler language would suffice. Misunderstanding it as permanent loss rather than temporary.

How do you pronounce I must have blacked out?

US: //aɪ mʌst hæv blækt aʊt//, UK: //aɪ mʌst hæv blækt aʊt//. Listen to the audio above to hear native pronunciation.

When should I use I must have blacked out?

Used in informal contexts to describe temporary loss of consciousness or memory, often due to emotional or physical stress. Not suitable for formal writing.