Must vs You ought to visit lockup

When to use each in English, with meaning, register, and examples.

Must

High-frequency chunkA1

You ought to visit lockup

Top 3,000 (common)
Most common: Must
 MustYou ought to visit lockup
Pronunciation🇬🇧 /["/məst//mʌst/","/ˈmʌsnt/"]/🇺🇸 /["/məst//mʌst/","/ˈmʌsnt/"]/🇬🇧 //jʊ ˈɔːt tə ˈvɪzɪt ˈlɒkʌp//🇺🇸 //ju ˈɔt tə ˈvɪzɪt ˈlɑkʌp//
MeaningSomething that is necessary or very important.You should visit the place where someone is held in jail.
ExampleYou must finish your homework before playing outside.You ought to visit lockup to see your friend.
RegisterNeutralNeutral
How commonHigh-frequency chunkTop 3,000 (common)
CEFR levelA1-
Collocationsmust see, must do, must have, must rememberought to do something, visit lockup, advise to visit lockup
Antonymscan, may, might-
Common mistakesUsing 'must' in situations where 'have to' is more suitable., Confusing 'must' with 'might' or 'may', which imply possibility instead of necessity., Using 'must' with the gerund form instead of the base form of the verb.Confusing with 'should' without understanding slight formality difference., 'Ought to' misused in negative form as 'oughtn't'., Omitting the verb in 'You ought to visit lockup.'
Usage notesUse 'must' when giving strong advice or making strong recommendations. Avoid using it in casual conversations where 'should' might be more appropriate.Use 'ought to' for advice or recommendation. More formal than 'should'; suitable for writing or serious conversations.

See it in real clips

Must
You ought to visit lockup

Frequently asked questions: Must vs You ought to visit lockup

What's the difference between Must and You ought to visit lockup?

Must: Something that is necessary or very important. You ought to visit lockup: You should visit the place where someone is held in jail.

Which is more common: Must and You ought to visit lockup?

Must is the most common in everyday English.

Can you show an example of each?

Must: You must finish your homework before playing outside. You ought to visit lockup: You ought to visit lockup to see your friend.

Can I use Must and You ought to visit lockup interchangeably?

Not always. Must and You ought to visit lockup are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons