я так и думал

that's what I thought

→ я
phrase Rare #32,110
that's what I thought A common phrase meaning that the speaker's suspicion or expectation was confirmed. The ending changes with the speaker's gender: я так и думала for a female speaker.
RU: Он снова опоздал — я так и думал.
EN: He was late again—that's what I thought.

Я так и думал.

I thought so.

— Прокол (1981)

Да, я так и думал.

Yes, I thought so.

Но, честно говоря, я так и думал.

But honestly, that's what I thought.

— Рим, открытый город (1945)

Я так и думал!

I thought so!