Must
Verb
UK
/mĘŚst/
US
/mĘŚst/
Definition
Used to show something is necessary or strongly believed.
Example
"You must finish your homework."
"You must follow safety rules to keep yourself and others protected."
"She must be very happy because she can’t stop smiling."
Explanation
Must is a modal verb and is used to show something is very important, necessary, or required. We use it when something has to be done. For example, you must wear a helmet while riding a bike It can also show a strong guess or belief, like she must be tired after working all day.