they should
Eles deveriam ter casado mês passado.
They were supposed to get married last month.
They should thank me.
Eu sei que não deveria ter dito a Tom e Mary que eles deveriam fazer isso.
I know I shouldn't have told Tom and Mary that they should do that.
Eles deveriam investir mais em propaganda.
They should invest more in advertising.
— A Partida (2008)
Eles deveriam pedir desculpas.
They should apologize.