نباید

In a sentence

• تو نباید دیر برسی.

  You should not arrive late.

  In this sentence, 'نباید' is used to express prohibition or advice against an action.

• او نباید اینجا باشد.

  They must not be here.

  In this case, 'نباید' conveys necessity not to be present at a location, implying a form of compulsion or restriction.

• ما نباید این فرصت را از دست بدهیم.

  We must not miss this opportunity.

  Here, 'نباید' emphasizes a strong recommendation or obligation to avoid missing an opportunity.