they should
Eles deveriam ter casado mês passado.
They were supposed to get married last month.
They should thank me.
Eles deveriam investir mais em propaganda.
They should invest more in advertising.
— A Partida (2008)
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 pedir desculpas.
They should apologize.