Falsas Gêmeas: ON BEHALF OF X IN BEHALF OF
ON BEHALF OF (on the part of; in the name of; as the agent of) x IN BEHALF OF (for the benefit of)
- On behalf of my government I would like to thank you for the money you raised in behalf of the refugees.
- Em nome de meu governo, gostaria de agradecer-lhes o dinheiro angariado em prol dos refugiados.

[...] and gentlemen, this is Captain Smith speaking. On behalf of my crew I’d like to welcome you aboard ABC Airways flight 602 from Kuala Lumpur to Los Angeles. [...]