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III
Activity 2.17
The simple past is
used to express a
past action that is now
Fnished.
We use the
past contin-
uous to indicate that an
action was in progress
in the past and was in-
terrupted.
The time expressions that are
used with the simple past are
last year, last month, Fve days
ago, yesterday, in 1990.
PAST
WHEN
WHILE
The past continuous is composed
of two parts:
1. The past tense of the verb to be.
2. The base of the main verb + ing
When introduces a second ac-
tion. The second action inter-
rupted the ongoing action.
We use while and the past contin-
uous with two actions in the same
sentence to express the idea that
both actions were happening at
the same time.