Learn Italian: La rissa era sul punto di scoppiare. - The brawl was about to break out.

We use the imperfect era because being 'about to' do something in the past describes an ongoing background state or a scene being set. Using the passato prossimo (è stata sul punto di) would sound like a closed, completed event, whereas here we are describing the tension of the moment right before the action.

How does era sul punto di scoppiare compare to using stava per scoppiare?

Both translate to 'was about to break out' and can often be used interchangeably. However, essere sul punto di (literally 'to be on the point of') conveys a sharper, more dramatic sense of immediacy. It emphasizes that the brawl was at the absolute brink of happening.

Is scoppiare the standard translation for 'to break out'?

Yes! Although scoppiare literally means 'to burst' or 'to explode', it is the most natural verb in Italian for sudden, intense events starting. You will frequently see it used with una rissa (a brawl), una guerra (a war), un incendio (a fire), or un temporale (a storm).

If the subject were plural, would punto change to match it?