Synonyms in Detail: must and should Usage & Differences

What context can I use each word in?

Learn when and how to use these words with these examples!

must

Example

You must wear a helmet while riding a bike. [must: modal verb]

Example

The report must be submitted by Friday. [must: auxiliary verb]

Example

I must say, this is the best pizza I've ever had. [must: modal verb]

should

Example

You should try the new restaurant down the street. [should: modal verb]

Example

It should stop raining soon. [should: auxiliary verb]

Example

We should arrive at the airport two hours before our flight. [should: modal verb]

Good things to know

Which word is more common?

Should is more commonly used than must in everyday language, as it is more versatile and covers a wider range of contexts.

Whatโ€™s the difference in the tone of formality between must and should?

Must is more formal than should, and is often used in rules, regulations, and laws, while should is more commonly used in informal and formal contexts alike.

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