An hour is a period of sixty minutes.
The idea
Say an hour because the h in hour is not pronounced; use hours after a number above one. For an hour describes duration, while in an hour can mean one hour from now.
Examples
- The lesson lasts an hour.
- There are sixty minutes in an hour.
- We waited for two hours.
- The bus leaves in an hour.
- She works eight hours a day.
- It takes half an hour to walk home.
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Watch out
For an hour says how long; in an hour can say when a future event will happen.
Try it yourself
Choose the article before the vowel sound in hour. The lesson lasts ___ hour. (a / an)
Show answer or example answer
an
An precedes the vowel sound at the start of hour.
Choose the plural after two. We waited for two ___. (hour / hours)
Show answer or example answer
hours
Hours is plural after two.
The bus will leave one hour from now. Choose the preposition. The bus leaves one hour from now: it leaves ___ an hour. (in / for)
Show answer or example answer
in
In places the departure one hour from now.
Practice round
Answer questions and rebuild English sentences to practise. Your score is shown.
Choose the article before the vowel sound in hour. The lesson lasts ___ hour. (a / an)
Choose the plural after two. We waited for two ___. (hour / hours)
The bus will leave one hour from now. Choose the preposition. The bus leaves one hour from now: it leaves ___ an hour. (in / for)
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
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Describe an activity lasting an hour and an event in an hour.