Should : we should restore the book that we have borrowed at library.
Shouldn’t : if we go to library, we shouldn’t speak loud, because it’s disturbing others.
Can : if you want to add a reference to a research, you can come to the library.
Can’t : i can’t go to the library right now, so i open the e-library that can be accessed online any time.
Should : we should take care and promote of the museum well .
Shouldn’t : as visitors, we shouldn’t take anything that belongs to museum.
Can : i can see a lot of historical objects in every single Museum.
Can’t : i can’t let the museum damaged by unresponsible people.
Should : i think we should take time to gather this afternoon at campus park to discussing about task.
Shouldn’t : you shouldn’t let your sister playing alone in the park because it may be dangerous.
Can : you can play with your brother in the park everyday.
Can’t : I can’t find your stuff that lost in this park without my glasses.
Should : this restaurant has a lot of good food, you should try it.
Shouldn’t : you shouldn’t make noise when you are in the restaurant.
Can : you can get a special gift if you come to this restaurant and bring your 10 friend at your birthday.
Can’t : you can’t order food that is not supplied or out off stock at this restaurant.
Should : cleaning service should make this mall always clean to make visitors comfortable when shopping.
Shouldn’t : you shouldn’t spent all of your time and money for buying some stuff at this mall just because discount.
Can : can you help me looking for my earrings that fell in the food court of this mall?
Can’t : the man can’t shop like the woman do. It happen a lot.
Ps : sorry for my bad grammar 😀