Respuestas

2013-07-18T01:00:06+02:00
Every day/morning/evening/night/week/month/
year/spring/ summer/autumn/winter
every other day/week
once a week/month/year
always (constantly, continually)
never (not ever)
hardly ever (rarely, seldom)
usually (generally, normally, often, frequently)
sometimes (ocasionally, periodically)
(every) once in a while
every so often
twice a week/month/year (three times…, etc.)
from time to time 
a few times a week/month/year
now and then
11 4 11
2013-07-18T01:26:22+02:00
TIME EXPRESSIONS:

- YESTERDAY:
 Marcelo didn't go to hospital yesterday.

- LAST: "week", "vacations", "winter" "summer", etc 
I went to the swimming pool last summer.
Last week, my family moved to England. 

- A LONG TIME AGO:
We should have done this a long time ago
(*) el uso en la expresión de la terminación AGO, expresa un tiempo pasado:Luisa completed her course two weeks ago.

- IN THE PAST:
In the past, I used to collect stamps.

- A LITTLE WHILE AGO
A little while ago, he had a serious car accident.

(**) podría recomendarte también el uso de: "Used to" para expresión de tiempo pasado simple. Por ejemplo:
I used to be hippie, but I'm not anymore. 
In my primary school, I used to play volleyball.