Your assistance, nevertheless cherished, was of terrible perplexity.
I am of sorrow to be as austere, and yet would rather prefer translating a passage from my French textbook, whereof a precise, pertinent elucidation would be highly valued:
" Rule of a long accentuated penult
When a word must, for any reason (accent of nominatif nouns,
accentuation of conjugated verbs, accentuation of certain
infinitives/participles), be accentuated on the penult and when that
penult is long: ...