| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] at a time | 94 |
|
| 2 | [was/were] [vb pp] at a time | 42 |
|
| 3 | was [vb pp] at a time | 28 |
|
| 4 | be [vb pp] at a time | 24 |
|
| 5 | [be] [vb pp] at a time | 24 |
|
| 6 | were [vb pp] at a time | 14 |
|
| 7 | is [vb pp] at a time | 14 |
|
| 8 | [is] [vb pp] at a time | 14 |
|
| 9 | [being] [vb pp] at a time | 5 |
|
| 10 | being [vb pp] at a time | 5 |
|
| 11 | [been] [vb pp] at a time | 5 |
|
| 12 | been [vb pp] at a time | 5 |
|
| 13 | [be] born at a time | 5 |
|
| 14 | [be] written at a time | 5 |
|
