In the video that you have just watched, the people say used to quite often. Used to is used when you are telling about past times in which things happened always.
People talking about their childhoodmemories
Okay, now you have watched the video. If you have listened carefully, you might have noticed that the people in the video said "used to" a lot of times. "used to" is a way of saying that in the past they always did some things.
when you want express a childhood memory in this way, you use: used to + full verb. ( hele werkwoord).
an example: My parents used to go for walks in the wood, but nowadays we go to the gym.