In HSK 5 grammar, under 词类 → 副词 → 语气副词, the forms include: 毕竟、居然、反正、根本、果然、简直、.
毕竟
bìjìng
after all
居然
jūrán
unexpectedly
反正
fǎnzhèng
anyway
根本
gēnběn
fundamental; root; at all
果然
guǒrán
as expected
简直
jiǎnzhí
simply; almost
暂无。