я такого

I haven’t seen anything like that

→ я
phrase Very common #2,043
I haven’t seen anything like that This is a sentence fragment rather than a complete expression: такого usually refers to “anything like that” and is followed by a verb, as in я такого не видел (“I haven’t seen anything like that”).
RU: Я такого раньше не видел.
EN: I’ve never seen anything like that before.

Я такого за собой не помню.

I don't remember ever doing anything like that.

Я такого не позволю.

I won't allow that.

— Зачётный препод (2013)

Что я такого съел?

What did I eat?

— 8 с половиной (1963)

Я такого больше не потерплю!

I won't put up with this anymore!

Я такого, наверное, никогда и не пробовал.

I probably have never even tried anything like that.

— Text (2019)

Я такого же на мотоцикле видал.

I saw the same thing on a motorcycle.

— Иваново детство (1962)

Я такого ещё никогда не слышал.

I've never heard anything like this before.

Я такого не говорила.

I didn't say that.

— Всё везде и сразу (2022)

Давненько я такого не видела.

I haven't seen something like this for a long time.

— Мальчик и птица (2023)