To be underway / under way
- Having started and in progress.
1 - The whistle sounded and the game was under way.
O apito soou e o jogo estava em andamento.
2 - The game was already underway when we arrived at the stadium.
O jogo já estava em andamento quando chegamos no estádio.
Bom pra ler: http://grammarist.com/spelling/underway-under-way/