son tres

there are three

→ ser
phrase Common #8,336
there are three Can also mean “they are three,” depending on the subject.
SP: En el equipo son tres mujeres.
EN: There are three women on the team.

Son tres.

There are three of them.

Son tres chicos en mi familia.

There are three boys in my family.

Sólo son tres.

There are only three.

— Los Siete Samuráis (1954)

Difícil es cuando son tres, pero después su cantidad no importa.

It's difficult when there are three, but after that, the number doesn't matter.

— Moscú no cree en lágrimas (1980)

Siete menos cuatro son tres.

Seven minus four is three.

Las casas que están fuera son tres.

There are three houses outside.

— Los Siete Samuráis (1954)

Cada paso que tú das, para mí son tres.

Every step you take is three steps for me.

Seis entre dos son tres.

Six divided by two is three.

Solo son tres más.

There are only three more.

— Los Siete Samuráis (1954)

Adejado, Evicto y Adejá, son tres hermanos.

Adejado, Evicto and Adejá are three brothers.

— Que Horas Ela Volta? (2015)

Son tres yuanes por noche.

That's three yuan per night.

— 三峡好人 (2006)