The document discusses the past continuous tense, which refers to an action that was in progress at a specific time in the past. It provides the structure of the past continuous tense, including the affirmative and negative forms, as well as the interrogative form. Examples are given to illustrate using the past continuous tense with time expressions like "while" and "when" to show two actions happening simultaneously or one action in progress when another occurred.

1. Use: The Past Continuous Tense refers to an action that was
in progress in a specific moment in the past.
Useful then at that moment when (I arrived home)
adverbs:
while (we were eatching TV)
Structure:
affirmative Subject was V-ing Complements
were
negative Subject wasn’t V-ing Complements
weren’t
interrogative (Wh) Was Subject V-ing Complements ?
Were

2. Present continuous Past continuous
now then
at this moment at that moment
am doing
was doing
is doing
are doing were doing

3. past knocked present future
was having
My neighbour knocked on the door. At that moment, I was having a bath.
While I was having a bath, my neighbour knocked on the door.
When I was having a bath, my neighbour knocked on the door.

4. While two actions at the same time
While she was writing a letter I was talking on the phone.
When One action in progress when the other
one took place.
We were watching the match on TV when he arrived.
When two actions at the same time
When they were having lunch, their son was taking an exam.