| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at a [adj -er] time | 35 |
|
| 2 | have [vb pp] at a [adj -er] | 35 |
|
| 3 | have [vb pp] at a time | 17 |
|
| 4 | have [vb pp] a [adj -er] time | 9 |
|
