SimilarityRank
a_long_time_ago 0.786 22554
decade_ago 0.698 32413
many_year_ago 0.675 15620
long_time_ago 0.672 96361
long_since 0.641 84784
year_ago 0.630 6831
some_[number]_year_ago 0.621 44893
more_than_[number]_year_ago 0.609 24310
have_long_since 0.597 59270
some_time_ago 0.593 26952
over_[number]_year_ago 0.590 22327
thousand_of_year_ago 0.580 91960
century_ago 0.578 67706
all_those_year_ago 0.577 83917
[number]_year_ago 0.572 3595
long_before 0.565 10675
almost_[number]_year_ago 0.562 51448
year_earlier 0.559 79632
twenty_year_ago 0.559 66247
[number]_year_earlier 0.559 77234
many_year_later 0.556 60551
about_[number]_year_ago 0.553 22341
[number]_year_before 0.552 47074
a_while_ago 0.552 31967
nearly_[number]_year_ago 0.547 48159