どんなに + [verb て-form] + も
どんなに + [i-adj 〜い → 〜く] + ても
どんなに + [na-adj] + でも
どんなに + [noun] + でも
The pattern どんなに~ても expresses "no matter how (much)", indicating that regardless of the degree or extent of an action or state, the outcome remains unchanged. It emphasizes that even an extreme effort or condition cannot change the result.
Use どんなに before the verb, and attach ても to its て-form.
Drop the final い and add くても.
Replace な with でも.
どんなに~ても often carries a sense of frustration or resignation – the speaker acknowledges that the situation won't change despite the extreme degree. It can also be used to express strong determination, showing that one's resolve holds regardless of circumstances.
The more formal equivalent is どんなに〜~ても → いくら~ても, which has a similar meaning. Also, たとえ〜~ても ("even if") is related but focuses on hypothetical scenarios rather than degree.