| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] at the time [prep] | 51 |
|
| 2 | [adv] [vb pp] at [art] time of | 43 |
|
| 3 | [adv] [vb pp] at [art] time [prep] | 39 |
|
| 4 | [not/n't] [vb pp] at [art] time [prep] | 14 |
|
| 5 | not [vb pp] at [art] time [prep] | 14 |
|
| 6 | not [vb pp] at [art] time [prep] | 12 |
|
| 7 | [adv] investigated at [art] time [prep] | 5 |
|
| 8 | properly [vb pp] at [art] time [prep] | 5 |
|
| 9 | properly [vb pp] at [art] time [prep] | 5 |
|
