| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did not at the time | 7 |
|
| 2 | did [not/n't] at the time | 7 |
|
| 3 | did [adv] at the time | 7 |
|
| 4 | [pron] did at the time | 11 |
|
| 5 | [pers pn] did at the time | 9 |
|
