sabe lo que está haciendo

knows what he/she is doing

→ saber
phrase Uncommon #10,333
knows what he/she is doing The subject of sabe can be él, ella, usted, or a person's name. The subject of está haciendo can be different from the subject of sabe, depending on context.
SP: María sabe lo que está haciendo.
EN: María knows what she is doing.

Tom sabe lo que está haciendo, ¿verdad?

Tom knows what he's doing, right?

Creo que Tom sabe lo que está haciendo.

I think Tom knows what he's doing.

Tom no sabe lo que está haciendo.

Tom doesn't know what he's doing.

Tom es joven, pero sabe lo que está haciendo.

Tom is young, but he knows what he’s doing.

Papá sabe lo que está haciendo.

Dad knows what he’s doing.

Él sabe lo que está haciendo.

He knows what he's doing.

— Shelter: El Protector (2026)

Tom no sabe lo que está haciendo, ¿verdad?

Tom doesn't know what he's doing, does he?

Tom sabe lo que está haciendo.

Tom knows what he's doing.

No sabe lo que está haciendo.

He doesn't know what he's doing.