даже не знаете

you don't even know

→ даже
phrase Rare #29,749
you don't even know Uses вы, which can refer to a group or be the formal/polite form of “you.” The phrase can appear before or after the object: Вы даже не знаете его and Вы его даже не знаете both mean “You don't even know him.”
RU: Вы даже не знаете, как сильно вы мне помогли.
EN: You don't even know how much you helped me.

Вы их даже не знаете.

You don't even know them.

Вы даже не знаете его.

You don't even know him.

Вы её даже не знаете.

You don't even know her.

Вы Тома даже не знаете.

You don't even know Toma.

Вы даже не знаете как вы мне помогли.

You don't even know how much you helped me.

— Пятый элемент (1997)

Не знаете--Вы даже не знаете.

You don't know-- You don't even know.

— Пятый элемент (1997)

Вы его даже не знаете.

You don't even know him.