estavam dançando

were dancing

→ estar
phrase Uncommon #11,644
were dancing Imperfect past progressive form of "estar + gerúndio." Used for an action in progress in the past.
PO: Eles estavam dançando na festa.
EN: They were dancing at the party.

O Tom e a Mary estavam dançando juntos.

Tom and Mary were dancing together.

Elas estavam dançando muito!

They were dancing a lot!

Todos os meninos estavam dançando.

All the boys were dancing.

Todas as crianças estavam dançando e cantando.

All the children were dancing and singing.

As outras garotas também estavam dançando.

The other girls were also dancing.

— Queen (2014)

Todos os rapazes estavam dançando.

All the boys were dancing.

Estavam dançando muito!

They were dancing a lot!

Todas as crianças estavam dançando.

All the children were dancing.

Todos os garotos estavam dançando.

All the boys were dancing.

As fadas estavam dançando à luz da lua.

The fairies were dancing in the moonlight.