Acciones repetidas o habituales:
1. She would go to the pool every Saturday during the summer.
Ella [iba] a la piscina todos los sábados durante el verano.
2. On Friday evenings, we would play pool at a local pub.
Las noches de viernes, [jugábamos] a los billares en un pub local.
3. He used to arrive 10 minutes late every time.
Él [llegaba] diez minutos tarde cada vez.
4. I drank coffee in the mornings and in the afternoons. Then I realized it was too much caffeine.
Yo [tomaba, bebía] café en las mañanas y en las tardes. Entonces [me di] (darse, pretérito) cuenta de que [era] demasiada cafeína.

Eventos o acciones en progreso:
5. While I was helping my neighbor, we talked about how school was going for our kids.
Mientras [ayudaba] a mi vecino, [hablábamos] sobre cómo [iban] los estudios para nuestros hijos.
6. They chatted and sang by the bonfire, and then went to bed.
[Charlaban, Platicaban, Conversaban] y [cantaban] al lado de la fogata, y entonces [fueron] (pretérito) a dormir.
7. When I lived there, I would go to a great authentic Mexican restaurant.
Cuando [vivía] allá, [iba] a un auténtico restaurante mexicano estupendo.
8. My son told the story while he played.
Mi hijo [contaba] (contar) la historia mientras [jugaba].

Características físicas:
9. My grandfather was tall and strong.
Mi abuelo [era] alto y fuerte.
10. The house they lived in was quite large.
La casa en que [vivían] [era] bastante grande.

Estados mentales o emocionales:
11. His kids woke him up early on Saturday. That is why he was pretty tired all day long.
Sus hijos lo [despertaron] (pretérito) temprano el sábado. Por eso, [estaba] bien cansado todo el día.
12. We were sad to hear the news of the passing of my aunt.
[Estábamos] tristes de oír la noticia del fallecimiento de mi tía.
13. I was quite happy yesterday when I went running in the preserve.
Yo [estaba] bien contento ayer cuando [salí, fui] (pretérito) a correr en la reserva.
14. Lucía was excited to see the whole family.
Lucía [estaba] emocionada de ver a toda la familia.

La hora:
15. It was two in the afternoon when everyone arrived at the restaurant.
[Eran] las dos de la tarde cuando todos [llegaron] (pretérito) al restaurante.
16. Yesterday evening, it was nine o'clock when I heard a knock on the door.
Ayer por la noche, [eran] las nueve cuando [oí] (pretérito) un golpe en la puerta.

Edad:
17. My brother was only 21 years old when he started his own business.
Mi hermano sólo [tenía] 21 años cuando [inició] (iniciar, pretérito) su propia empresa.
18. When the fraternal twins began school, they were six years old.
Cuando los mellizos [empezaron, comenzaron] (empezar/comenzar, pretérito) en la escuela, [tenían] seis años.
19. When I was seven years old, I stopped playing videogames. I had an original Nintendo. It was causing me stress.
Cuando [tenía] siete años, [dejé] (dejar, pretérito) de jugar a los videojuegos. [Tenía] un Nintendo original. Me [causaba] estrés.
20. When I was twenty years old, I stopped watching television. I was wasting too much time.
Cuando [tenía] veinte años, [dejé] (dejar, pretérito) de mirar televisión. [Malgastaba, Desperdiciaba, Perdía] demasiado tiempo.