be sure

idiom

used to tell someone not to forget to do something
Be sure to lock the door when you leave.

Examples of be sure in a Sentence

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Washing and thoroughly drying a filter is recommended every so often (check your vacuum's best practices to be sure), but putting a damp filter back in to be used can cause mildew-y smells to be deposited all over your home and decrease the effectiveness of the suction. Mary Catherine McAnnally Scott, Southern Living, 31 May 2025 These are uptown problems, to be sure — as are the 15 Emmys the show has picked up (so far) — but the basic challenge of adapting a novel for the small screen is both daunting and rather common. Todd Longwell, Variety, 31 May 2025 To be sure, King has more to offer than a solid page-to-cost ratio. Maren Longbella, Boston Herald, 30 May 2025 The Innovation Is Still Up to Us Interpretive Letter 1184 is a welcome milestone, to be sure. Tonya M. Evans, Forbes.com, 19 May 2025 See All Example Sentences for be sure

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“Be sure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/be%20sure. Accessed 6 Jun. 2025.

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