The past tense of floccinaucinihilipilificate is floccinaucinihilipilificated.
The third-person singular simple present indicative form of floccinaucinihilipilificate is floccinaucinihilipilificates.
The present participle of floccinaucinihilipilificate is floccinaucinihilipilificating.
The past participle of floccinaucinihilipilificate is floccinaucinihilipilificated.