Different Expressions To Talk About Time

Question 1

A go:

we use a go when a past event happened, it always goes after an expression of time. 3 years a go
And the verb always in past simple form because it refers to a finishes period of time!

I went on holiday a couple of weeks a go.

I finished univercity five years a go

They saw him a while a go.

Question 2

During:

We use during to say when sth happens.

We went for a walk during the day.
We visited many museums during the holidays

Question 3

For:

We use for to say how long sth goes on…

He worked at the shop for 6 years.
I went on holiday for a week.

Question 4

Since:
We use since to refer to staring point of actions or situations. We use it mostly with present perfect but sometimes we see it with past simple.

It hasn’t rained since last week.
I’ve lived here since 1995.
I’ve been awake since 5am

Question 5

Until:
We use until to say when continues up to specific time. We can use till instead of until. But till is more informal and more use in spoken.

We were on holiday until the end of september.

I’m in London till sunday.

The shops are open until 9pm on thursday

Question 6

After:or later
She went to the gym after breakfast

Before: or earlier
We arrived at the airport two hours before the flight

I spole to him before the meeting
I spoke to hin earlier

While: usually a fairly short time
Someone came while you were out

In a while: i’ll call you in a while

For a while: i haven’t seen you for a while

A while a go: we visited him a while a go