PRESENT CONTINUOUS-WHEN - WHILE

When do we use the present continuous?

• with the simple past to talk about an action that will be interrupted by another action

• with the simple past to talk about an action that was interrupted by another action

Use WHEN to introduce a

• time clause with the past continuous

• time clause with the simple past

Use WHILE to

• introduce a time clause with the simple past

• introduce a time clause with the past continuous

A time clause can start or end a sentence

• T

• F

Do We use the simple past for the ongoing actions?

• F

• T

The witness was walking

• PAST CONTINUOUS

• SIMPLE PAST