Have fun means to enjoy yourself, have a good time or enjoy an activity. It is often a wish before a trip or a party: Have fun! means “Have a great time!”
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have fun; have (a lot of / great) fun + -ing; Have fun!
- We had so much fun at the festival that we're going again next year.
- Have fun in Rome, and don't forget to send us some photos!
- Our team had fun planning the office party, even though it took weeks.
What changed
First versionWe had a fun at the party last night.
RevisionWe had fun at the party last night.
Fun in the sense of enjoyment is uncountable, so it does not take a. To make it stronger, say a lot of fun or great fun. The correction removes a.
Make fun of means something completely different: to laugh at someone unkindly. They made fun of his accent means they laughed at the way he spoke. And do not confuse fun with funny: The trip was fun means it was enjoyable, while The guide was funny means he made people laugh.
Your turn
The children had great fun ___ sandcastles on the beach all afternoon.
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building — After have fun, the activity takes the -ing form: had fun building. To build is not used after fun in this pattern. The infinitive is possible in a different sentence: It was fun to build sandcastles.
Write about a weekend you enjoyed. Say where you were and name the activity using have fun + -ing.
Last Saturday we had a lot of fun cycling along the river and having a picnic in the park.
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