(they) laughed, (they) were laughing
Todos en el vecindario se reían mucho entonces.
Everyone in the neighborhood laughed a lot then.
— Dos hermanas (2003)
Cuando entré a la habitación, Tom y María se reían de algo.
When I entered the room, Tom and Maria were laughing about something.
The other children were laughing.
Algunos conductores reían y gritaban.
Some drivers were laughing and shouting.