彼(かの)女(じょ) kanojoを o喜(よろこ)ば()せ()る() yorokobaseruこと kotoは wa難(むずか)し()い() muzukashiiと toわかった wakatta。 I found it difficult to please her. Literal Her please [nominalizer-こと] [topic-は] difficult [quotative-と] understood. 喜ばせることは難しい means 'pleasing her is difficult.' と分かった means 'I came to understand.' relationshipsnominalizer こと
彼(かの)女(じょ) kanojoを o喜(よろこ)ば()せ()る() yorokobaseruこと kotoは wa難(むずか)し()い() muzukashiiと toわかった wakatta。 I found it difficult to please her. Literal Her please [nominalizer-こと] [topic-は] difficult [quotative-と] understood. 喜ばせることは難しい means 'pleasing her is difficult.' と分かった means 'I came to understand.' relationshipsnominalizer こと