Todo sobre el past progressive tense?

ThePAST PROGRESSIVE TENSEindicates continuing action, something that was happening, going on, at some point in the past.

This tense is formed with the helping "to be" verb, in the past tense, plus the present participle of the verb (with an - ingending) : Iwas ridingmy bike all day yesterday.

Joelwas beinga terrible role model for his younger brother.

The past progressive indicates a limited duration of time and is thus a convenient way to indicate that something took place (in the simple past) while something else was happening : Carloslosthis watch while hewas running.

The past progressive can express incomplete action.

Iwas sleepingon the couch when Bertie smashed through the door.

(as opposed to the simple past, which suggests a completed action : I slept on the couch last night.

The past progressive is also used to poke fun at or criticize an action that is sporadic but habitual in nature : Tashondawasalwayshandingin late papers.

My fatherwasalwayslecturingmy brother.

Generally, progressive forms occur only with what are called dynamic verbs and not with stative verbs.