If I had known it was your birthday, I would have bought you a gift.

Translation language

Sentence

Narrator

I regret not knowing it was your birthday; I would have gotten you a gift.

Imagine if I'd known – I would have definitely bought you a present.

Oh, it was your birthday? Darn, I would have gotten you something!

Please accept my apologies for not knowing about your birthday. Had I been aware, I would have presented you with a gift.

Had I been aware of your birthday, I would have purchased a gift for you.

If I'd known, I totally would have gotten you a gift!

I would have bought you a present if I knew.

Expressing a hypothetical situation based on past knowledge.

Expressing a hypothetical action in the past.