| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [vb pp] at [art] time | 70 |
|
| 2 | be [adv] [vb pp] at [art] time | 70 |
|
| 3 | [be] [adv] [vb pp] at the time | 65 |
|
| 4 | [was/were] [adv] [vb pp] at [art] time | 50 |
|
| 5 | was [adv] [vb pp] at [art] time | 36 |
|
| 6 | were [adv] [vb pp] at [art] time | 14 |
|
| 7 | [be] widely [vb pp] at [art] time | 7 |
|
| 8 | [be] [adv] investigated at [art] time | 6 |
|
| 9 | [be] often [vb pp] at [art] time | 6 |
|
| 10 | [be] [adv] [vb pp] at [art] time | 5 |
|
| 11 | [am/are] [adv] [vb pp] at [art] time | 5 |
|
| 12 | be [adv] [vb pp] at [art] time | 5 |
|
| 13 | [be] properly [vb pp] at [art] time | 5 |
|
| 14 | are [adv] [vb pp] at [art] time | 5 |
|
| 15 | [be] [adv] [vb pp] at a time | 5 |
|
| 16 | [been] [adv] [vb pp] at [art] time | 5 |
|
| 17 | been [adv] [vb pp] at [art] time | 5 |
|
