It would indicate past action or habit of recurring
Examples:
when i was a child, my mother would read me a story at night before bed.
A child, before going to sleep at night my mother often told me the story
It can also always be someone acts, often expressed criticism of the behavior of people harbor some anger or express emotion on the behavior of others, at this time would reread.
Examples:
. Of He WAS A Nice Boy, But Would Talk of He Himself All the About Time at The
others good, but is the old talk about himself.
used to, it would represent the action can be repeated or habitual, but can also be used to refer to a state existed in the past.
name:
my own mother used to be very busy the whole day.
Previously, my mother is always busy every day. (Present state table)