A long time ago
A2In the distant past
Last week
A2Seven days ago
Yesterday
A2The day before today
Last night
A2The night before today
Earlier today
A2Before now, in the current day
This morning
A2The morning of the current day
In the past
A2At a previous time
Once upon a time
A2A long time ago, often used in story telling
Before that
A2Prior to a previously mentioned event
After that
A2Following a previously mentioned event
At that time
A2During a specific past moment
During the summer
A2In the summer of a specific year
Two years ago
A224 months in the past
Many years ago
A2A significant time in the past
When I was young
A2During my childhood
Several days ago
A2A few days in the past
A few weeks ago
A2Several weeks in the past
One day
A2On a specific day in the past
Back then
A2In that past time
In those days
A2During that period in the past
Looking back,
B1When considering the past
In the past,
B1Previously
A while ago,
B1Some time in the past
Some time ago,
B1A period of time in the past