この前Backstreetboysがテレビにでてたよって英語でなんて言うの？

In order to tell a friend that the Backstreet Boys appeared on television the other day, you can simply say "I saw the Backstreet Boys on television the other day" or "The Backstreet Boys were on TV the other day". Both these sentences are simply but effective, they both explain clearly to your friend what you witnessed and when. Either of these sentences communicate the point needed.

"I saw the Backstreet Boys on TV the other day!" The "other day" can refer to two or as much as seven days before. Which means if you saw them seven days ago, you don't have to use, "last week". "The Backstreet Boys was on TV a few days ago!" "A few" refers to a small number of days.

If you want to tell a friend that The Backstreet Boys were on TV the other day, just use the above exampled sentence!

I would say: "The Backstreet Boys were on TV the other day." or "I saw the Backstreet Boys on TV the other day." Both of these are direct ways of letting the other person know that you saw the band on TV recently. I hope this helps! :)

It is possible that your friend already knows that the Backstreet Boys were on TV so this is a way to both ask if they know and show that you do know about it. This will show interest in their opinion. I hope that this helps. :)

In American English, this is a standard way to express this idea. The 'other day' simply means 'a few days ago' or 'a couple of days ago' but does not usually refer to 'yesterday', in which case we would simply use the word 'yesterday'. In addition, 'other day' cannot be used to refer to 'a few weeks ago' since it would be too far in the past for the phrase 'the other day' to fit. 'Caught' in this case simply means 'to see by happenstance'. I hope that this is useful to you.