keep it a secret

I could keep it a secret.

Je pourrais garder le secret.

They swore to keep it a secret.

Ils ont juré de garder le secret.

Can you keep it a secret?

Peux-tu garder le secret ?

You want to keep it a secret?

Vous voulez garder ça secret ?

— 8½ (1963)

Why did you keep it a secret?

Pourquoi as-tu gardé ça secret ?

We could keep it a secret.

On pourrait garder ça secret.

I promised him to keep it a secret.

Je lui ai promis de garder le secret.

You may as well keep it a secret.

Autant garder le secret.

You'll never be able to keep it a secret.

Tu ne pourras jamais garder ça secret.