The past tense of be nicely fragranced is was nicely fragranced or were nicely fragranced.
The third-person singular simple present indicative form of be nicely fragranced is is nicely fragranced or are nicely fragranced.
The present participle of be nicely fragranced is being nicely fragranced.
The past participle of be nicely fragranced is been nicely fragranced.