| Similarity | Rank | |
|---|---|---|
| when_it_start | 0.599 | 71441 |
| when_I_first | 0.568 | 50596 |
| when_it | 0.564 | 3085 |
| when_it_be | 0.544 | 2535 |
| since_it | 0.536 | 4828 |
| when_we_first | 0.528 | 94982 |
| over_a_decade_ago | 0.522 | 94008 |
| I_remember_when | 0.516 | 93654 |
| nearly_[number]_year_ago | 0.503 | 48159 |
| almost_[number]_year_ago | 0.501 | 51448 |
| back_then | 0.498 | 8288 |
| ever_since | 0.495 | 4596 |
| way_back_in_[number] | 0.493 | 51628 |
| the_first_time_I | 0.492 | 50108 |
| two_year_ago | 0.489 | 9948 |
| since_its | 0.489 | 23865 |
| more_than_a_year_ago | 0.487 | 99512 |
| in_the_early_1980 | 0.486 | 25476 |
| be_[number]_year_since | 0.484 | 68859 |
| even_before | 0.483 | 9208 |
| in_the_late_1980 | 0.483 | 29771 |
| several_month_ago | 0.481 | 53413 |
| over_[number]_year_ago | 0.480 | 22327 |
| when_you_first | 0.480 | 95933 |
| three_year_ago | 0.479 | 17729 |