| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] on [prep] a while | 20 |
|
| 2 | [vb past] on [prep] a while | 8 |
|
| 3 | [vb infin] on [prep] a while | 5 |
|
| 4 | on [prep] [adv] a while | 5 |
|
| 5 | on [prep] quite a while | 5 |
|
| 6 | on [prep] quite a while | 5 |
|
| 7 | on [prep] [adv] a while | 5 |
|
| 8 | on [prep] a little while | 6 |
|
| 9 | on [prep] a [adj] while | 6 |
|
| 10 | on [prep] a little while | 6 |
|
| 11 | on [prep] a [adj] while | 6 |
|
