Past Continuous
Tiempo específico: while, when, as, at that moment, all day, all night, at 5 p.m., this morning.
Duración: for hours, for a long time, the whole day, all evening.
Affirmative: I was working here, He was working here, We were working here.
Negative: I wasn't working here, We weren't working here, He wasn't (was not) working here.
Interrogative: Was I working here?, Was he working here?, Were we working here?
Past Simple
Adverbs
Tiempo específico: yesterday, last (week, month, year), ago, in (1999, July), on Monday, when I was a child, at that moment.
Frecuencia: always, often, sometimes, seldom, never (cuando hablamos del pasado).
Affirmative: I worked here, He worked here.
Negative: I didn't work here, He didn't work here.
Interrogative:
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