PAST CONTINUOUS

(long action)*

Afirmativa

I / He / She / It   +  was   +  -ing
We / You / They   + were  +  -ing

(they were arguing again)
(I was reading that)


Negativa

 I / He / She / It   +  was  not / wasn't  +  -ing
We / You / They   + were not / weren't  +  -ing

(I wasn't listening to her)
(We weren't talking to each other)

Interrogativa

Was  +  I / He / She / It   +  was   +  -ing?
Were +  We / You / They   + were  +  -ing?

(Were you shouting at him?)
(Was she helping you?)


Adverbs
While- mientras
As- mientras