article-jlpt-grammar

いくら〜ても and どんなに〜ても allow you to add emphasis to your sentences, showing that an action or a condition is being pushed to its limit without changing the outcome.

When you attach 合う to the end of another verb, it transforms that verb into a reciprocal action. In English, this means "each other" or "to one another."

きっかけ (kikkake) means a chance, a start, a cue, or a trigger. When we add the particle が (ga) and で (de), we create a phrase that means "with [X] as the trigger"