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estava tremendo

was trembling

→ estar
phrase Rare #30,339
was trembling The imperfect form of estar plus the gerund means that someone was in the process of trembling or shaking. The cause can follow de, as in de medo (with fear) or de raiva (with anger).
PO: Quando entrei na sala, ele estava tremendo de frio.
EN: When I entered the room, he was trembling from the cold.

Tom estava tremendo de tanto rir.

Tom was trembling with laughter.

Ele estava tremendo de raiva.

He was trembling with rage.

Frankie, ele já não estava tremendo?

Frankie, wasn't he trembling already?

— Os Bons Companheiros (1990)

A menina estava tremendo de medo.

The girl was trembling with fear.

A ponta estava tremendo como a névoa de calor.

The tip was trembling like a fog of heat.

— Demon Slayer: Kimetsu no Yaiba Castelo Infinito (2025)

Ela estava tremendo de medo.

She was trembling with fear.

Eu estava tremendo como uma folha.

I was shaking like a leaf.

Tom estava tremendo de rir.

Tom was trembling with laughter.