We used to live by the sea when I was a child.
used to
grammar pointTwo everyday senses. As a past marker (used to + verb): something that happened regularly, or was true, in the past but isn't now — "We used to live by the sea." After be or get (be/get used to + noun or -ing): accustomed to, or comfortable with, something — "I'm used to the noise now."
Origin
disputed originFrom used, past participle of use (“(archaic sense) to be in the habit of”) + to.
I'm not used to the cold here yet, though I used to live somewhere even colder.
She used to commute two hours each way, so she quickly got used to working from home once the office closed.