j'aurai dû

I will have had to; depending on context, it can also mean that something will have been necessary by a future point.

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phrase Rare #33,183

I will have had to; depending on context, it can also mean that something will have been necessary by a future point. This is the first-person singular future perfect of « devoir ». It should not be confused with « j'aurais dû », which usually means “I should have.”

FR: D'ici vendredi, j'aurai dû faire une réservation d’hôtel plus tôt.

EN: By Friday, I will have had to make a hotel reservation earlier.

J'aurai dû te le dire.

I should have told you.

J'aurai dû fuir quand je le pouvais encore.

I should have fled while I still could.

— Assassination (2015)

J'aurai dû ajouter plus de sel.

I should have added more salt.

J'aurai dû vous tuer là-bas.

I should have killed you there.

— Assassination (2015)