The Past Simple is easy peasy, right?
Regular verb – Play/Played, Live/Lived.
Irregular verb – Go/Went, Take/Took.
When a quick action interrupts a long action we put
the long action into the Past Continuous:
WAS/WERE + -ING form of verb.
When he came, I WAS play ING the guitar.
Olé, you play great guitar!