in writing
I'll put everything in writing.
Put that in writing.
Mándeme los detalles por escrito, pero lo dejo en sus manos.
Send me the details in writing, but I'll leave it in your hands.
— Contratiempo (2017)
Dejamos pocas cosas por escrito, pero algo dejamos.
We left few things in writing, but we did leave something.
— Zeta (2026)
Tío, hasta que no reciba la garantía por escrito no se vaya.
Dude, don't leave until you get the guarantee in writing.
— P.K. (Peekay) (2014)
Y el jefe de la Policía de Birmingham le dio permiso por escrito.
And the chief of the Birmingham police gave him written permission.
— Peaky Blinders: El hombre inmortal (2026)
Put it in writing.