il produirait

would happen, would occur

→ produire
produir to produce, to make + ait 3rd-person singular conditional
verb · 3rd-person singular Rare #45,284
would happen, would occur Used here for an event that was expected or predicted to happen.
FR: Je savais que ça se produirait.
EN: I knew that it would happen.
Conjugation of produire
Conditional
SingularPlural
Third produirait —

Comment avez-vous su que cela se produirait ?

How did you know that this would happen?

— Mirage (2018)

Je ne pensais pas que ceci se produirait.

I didn’t think this would happen.

Ils auraient dû savoir que ceci se produirait.

They should have known that this would happen.

Je vous ai dit que ceci se produirait.

I told you this would happen.

Je savais que ça se produirait.

I knew this would happen.