b. It was 10.00. Boris was sitting in class.

​

Past progressive describes an activity in progress at a particular time in the past.​

PAST PROGRESSIVE

(in progress yesterday)​

a. It's 10.00 now. Boris is sitting in class.

​

Present progressive describes an activity in progress right now, at the moment of speaking.​

PRESENT PROGRESSIVE

​(in progress right now)

PRESENT PROGRESSIVE AND PAST PROGRESSIVE

USING WHILE WITH PAST PROGRESSIVE

a. The phone rang while I was sleeping. OR

b. While I was sleeping, the phone rang.

while + subject + verb = a time clause

While I was sleeping is time clause.

​

c. When the mouse appeared, I was studying. OR

d. ​I was studying when the mouse appeared.

​

Kata kerja yang digunakan dalam when-clause​ biasanya berbentuk simple past.

a. The mouse appeared while I was studying. OR

b. While I was studying, the​ mouse appeared.

​

Kata kerja yang digunakan dalm while-clause biasanya berbentuk past progressive​.

WHILE VS. WHEN IN PAST TIME CLAUSES

EXERCISE

Direction: Complete the sentences. Use the past progressive in the while-clauses or when-clauses.​

ex:

​1. While I (wash) was washing dishes last night, I (get) got a phone call from my best friend.

Subject | Subject

Some text here about the topic of discussion

Basic English Grammar

Chap. 284

HOMEWORK!

Do exercise 37 at 248 (chapter 9)!