j'y comprends rien

I don't understand a thing about it

→ je
phrase Rare #42,921
I don't understand a thing about it Informal French drops ne from the standard negative phrase je n'y comprends rien.
FR: La mécanique ? J'y comprends rien.
EN: Car mechanics? I don't understand a thing about it.

J'y comprends rien du tout.

I don't understand it at all.

— Rashōmon (1950)

J'y comprends rien du tout !

I don’t understand any of it!

— Yi Yi (2000)

J'y comprends rien.

I don't understand anything.

— Femmes au bord de la crise de nerfs (1988)

Moi, le rugby, j'y comprends rien.

Me, I don't understand rugby at all.

— Le Cercle des neiges (2023)

Moi, j'y comprends rien.

I don't understand any of it.

— Get Out Your Handkerchiefs (1978)

Remarquez, j'y comprends rien.

Notice, I don't understand a thing about it.

— Cinema Paradiso (1988)