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I’m running late.

UK //aɪm ˈrʌnɪŋ leɪt//US //aɪm ˈrʌnɪŋ leɪt//

Definition

To be delayed and not arrive at a scheduled time.

In simple words: I am not on time.

Examples

  • I'm running late for the meeting, please start without me.
  • I didn't mean to keep you waiting; I'm running late because of traffic.
  • Sorry, I'm running late; I lost track of time.
  • If I'm running late, I will text you.
  • He always tells me he's running late, but I think he just sleeps in.

Usage notes

Use this phrase to inform someone you will arrive later than planned. It's polite and widely understood.

Grammar pattern

be + running late

Memory hint

Think of 'running' as racing against time to explain your delay.

Collocations

  • running late to work
  • running late for an appointment
  • running late on a deadline

Synonyms

  • late
  • delayed
  • behind schedule

Common mistakes

  • Confusing with 'running' as in exercising.
  • Using 'run' instead of 'running' in this context.
  • Not using the phrase when it's actually appropriate.