j'y réfléchis

I'll think about it

→ je
phrase Uncommon #21,115
I'll think about it The pronoun « y » refers to something previously mentioned or understood. « Réfléchir à quelque chose » means to think about something; depending on context, « j'y réfléchis » can also mean “I'm thinking about it.”
FR: Merci pour ta proposition ; j'y réfléchis et je te réponds demain.
EN: Thanks for your proposal; I'll think about it and get back to you tomorrow.

J'y réfléchis.

I'm thinking about it.

Et pourtant, quand j'y réfléchis, je ne sais rien de lui.

And yet, when I think about it, I know nothing about him.

— La Chute (2004)

Je suis terriblement amoureux de toi quand j'y réfléchis.

When I think about it, I’m terribly in love with you.

— Les Fraises sauvages (1957)

J'y réfléchis encore.

I'm still thinking about it.

Plus j'y réfléchis, moins je la comprends.

The more I think about it, the less I understand her.

J'y réfléchis, mais allons prendre un café.

I'll think about it, but let's go get a coffee.

— Toni Erdmann (2016)

C'est pourquoi j'y réfléchis.

That’s why I’m thinking about it.

— Oppenheimer (2023)

Plus j'y réfléchis, moins je le comprends.

The more I think about it, the less I understand it.