Breakdown of Me lo dice l'architetto: il ponte sarà progettato da lui.
essere
to be
lui
he
il ponte
bridge
dire
to say, to tell
Questions & Answers about Me lo dice l'architetto: il ponte sarà progettato da lui.
Why is it sarà progettato instead of just "progetterà"?
This is the passive voice. Instead of saying the architect will design (active), it says the bridge will be designed (passive). To form it in the future tense, you use the future of essere (sarà) plus the past participle of the main verb (progettato). Because the subject (il ponte) is masculine singular, the participle ends in -o.
Why do we use da lui for "by him"?
Why is it Me lo dice rather than Mi lo dice?
When an indirect object pronoun like mi (to me) is combined with a direct object pronoun like lo (it), the i changes to an e. Therefore, mi + lo becomes me lo ("it to me").