Adverbe de timp și loc - Adverbe de joasă frecvență

not at any point in time

niciodată

on any occasion

vreodată

in a manner that almost does not occur or happen

aproape niciodată

for one single time

o dată

for a single instance

o singură dată

for two instances

de două ori

on a very infrequent basis

rareori

used to refer to something that happens rarely or infrequently

rar

on very rare occasions

rareori

in an infrequent and unpredictable manner

sporadic

not on regular occasions

neobișnuit

not on a regular basis

ocazional

on irregular but not rare occasions

on occasions that are not regular or frequent

at moments that are not constant or regular

uneori

at infrequent intervals

ocazional

at irregular intervals

perioadic