| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at a [adj] | 1177 |
|
| 2 | [vb pp] at [adj] time | 534 |
|
| 3 | at a [adj] time | 380 |
|
| 4 | [vb pp] a [adj] time | 348 |
|
| 5 | [vb pp] at a time | 148 |
|
