| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] a long | 112 |
|
| 2 | [vb past] [pron] a while | 29 |
|
| 3 | [pron] a long while | 12 |
|
| 4 | [vb past] a long while | 7 |
|
