| yesterday(noun, adverb, time, past, history) |
| once(noun, adjective, adverb, conjunction, future) |
| since(adverb, preposition, because, after, for) |
| formerly(adverb, future, before, once, previously) |
| ago(adjective, adverb, once, previously, formerly) |
| long(noun, verb, adjective, adverb, once) |
| sometimes(adverb, occasionally, periodically, now and then) |
| ever(adverb, always, forever, evermore) |
| historically(adverb, formerly, factually, monumentally) |
| lastly(adverb, once, previously, formerly, actually) |
| then(adjective, adverb, conjunction, thus, therefore) |
| unusually(adverb, extremely, extraordinarily, uncommonly) |
| before(adverb, preposition, conjunction, once, previously) |
| previously(adverb, before, once, formerly) |
| after all(expression, idiom, yet, however, nevertheless) |
| afterward(adverb, once, previously, formerly, actually) |
| afterwards(adverb, after, later, subsequently) |
| already(adverb, before, previously, formerly) |
| anciently(adverb, once, previously, formerly, actually) |
| anon(adverb, once, previously, formerly, actually) |