Tagalog Indirect Speech or Thought: Introduced by Kung ²

Sinabi ko kung bakit.

I said why.

Tinanong ko kung bakit.

I asked why.

Tinanong ko kung kailan babalik si John.

I asked when John would come back.

Alam ko kung bakit.

I know why.

Alam mo ba kung bakit?

Do you know why?

Naalala ko kung bakit.

I remembered why.