Time Adverbs & Prepositions. Part 2 / Grammar

Use

during + noun
throughout or within a specified period of time
Note: Do not use during + subject + verb, etc.

while + subject + verb, etc.
• happening throughout o within a specified period of time
• = during the time that
• to talk about something that happens during a period of time
• to talk about two things that were happening during the same period of time
Note: After while, use a present tense to talk about the future.

as + subject + verb, etc.
• happening throughout or while a specified period of time
• = at exactly the same time as; during exactly the same period as

just as + subject + verb, etc.
to emphasize that two things happen at exactly the same time

Example

I had a job during my school holidays.
NOT during I was on holiday.
I had a job while I was on holiday from school.
I met her while we were both working at the same place.
While I was working hard, mu friends were having fun.
While I’m traveling the next month, I’ll send you a postcard.
As I got nearer, the noise got louder.
As I was walking down the street, I heard someone call my name.
Just as I was leaving, the phone rang.

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