| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years back | 128 |
|
| 2 | [det] years back | 89 |
|
| 3 | few years back | 74 |
|
| 4 | few years back | 74 |
|
| 5 | [num] years back | 36 |
|
| 6 | [prep] years back | 34 |
|
| 7 | [prep] years back | 34 |
|
| 8 | of years back | 31 |
|
| 9 | of years back | 31 |
|
| 10 | some years back | 10 |
|
| 11 | some years back | 10 |
|
| 12 | two years back | 6 |
|
| 13 | two years back | 6 |
|
| 14 | four years back | 5 |
|
| 15 | four years back | 5 |
|
| 16 | five years back | 5 |
|
| 17 | [verb] years back | 5 |
|
| 18 | five years back | 5 |
|
| 19 | years [verb] back | 5 |
|
| 20 | years back [conj] | 23 |
|
| 21 | years back [prep] | 14 |
|
| 22 | years back [prep] | 14 |
|
| 23 | years back [coord] | 10 |
|
| 24 | years back [pron] | 9 |
|
| 25 | years back [adv] | 8 |
|
| 26 | years back [adv] | 8 |
|
| 27 | years back and | 8 |
|
| 28 | years back and | 8 |
|
| 29 | years back [subord] | 8 |
|
| 30 | years back [pers pn] | 7 |
|
