WAS/WERE GOING TO AND WAS/WERE SUPPOSED TO

Función

Usamos going to en el pasado para hablar sobre planes e intenciones que no sucedieron. Utilizamos supposed to en el pasado para hablar sobre cosas que se esperaba que hiciéramos pero que no hicimos.

Forma

was/were going to + base form	I was going to call you. We weren´t going to come but we changed.
was/were supposed to + base form	You were supposed to copy  Sofi in on all the emails.

Ejemplos

We are going to visit the Homers later that year, but we didn't go for some reason.
(Nosotros planeábamos visitar a los Homer pero no lo hicimos)

We were going to spend the weekend in Paris, but there was no free rooms.
(Íbamos a pasar el fin de semana en París, pero no vamos a ir allí)

Ana was supposed to book the cottage months ago, but she forgot.
(Acordamos que Ana reservaría la casa de campo, pero no lo hizo)

I was supposed to call you back, wasn't I? Sorry, Sam, I was out all day.
(Sam esperaba que su novia le devolviese la llamada, pero no lo hizo)

SHOULD/SHOULDN´T HAVE

Función

Usamos el modal perfecto should /shouldn´t have para criticar o expresar arrepentimiento por las cosas que la gente hizo o dejó de hacer en el pasado.

Forma

should have + past participle	I/he/she/we/you/they/should have gone to the doctor.
shouldn´t have + past participle	I/he/she/we/you/they/shouldn´t have been rude to the store assistant.

Ejemplos

• ·         He should have paid for the CDs.
• ·      They should have told the police.
• ·      He shouldn´t have downloaded the music.
• ·      She shouldn´t have driven so fast.

Ejercicios

 https://www.ecenglish.com/learnenglish/lessons/should-have-past-participle