| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | two [noun pl] back | 56 |
|
| 2 | [num] years back | 36 |
|
| 3 | three [noun pl] back | 28 |
|
| 4 | [num] miles back | 24 |
|
| 5 | five [noun pl] back | 21 |
|
| 6 | four [noun pl] back | 18 |
|
| 7 | [num] yards back | 13 |
|
| 8 | [num] steps back | 12 |
|
| 9 | [num] pounds back | 9 |
|
| 10 | ten [noun pl] back | 9 |
|
| 11 | hundred [noun pl] back | 9 |
|
| 12 | [num] months back | 7 |
|
| 13 | six [noun pl] back | 7 |
|
| 14 | [num] days back | 7 |
|
| 15 | [num] weeks back | 7 |
|
| 16 | twenty [noun pl] back | 6 |
|
| 17 | [num] lengths back | 5 |
|
| 18 | [num] minutes back | 5 |
|
| 19 | [num] hours back | 5 |
|
| 20 | seven [noun pl] back | 5 |
|
