| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [not/n't] so long ago | 6 |
|
| 2 | that [not/n't] so long ago | 6 |
|
| 3 | that [not/n't] so long [adv] | 6 |
|
| 4 | that [not/n't] so long [adv] | 6 |
|
