| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb -s] for a | 257 |
|
| 2 | [pron] for a while | 232 |
|
| 3 | [pron] [vb -s] a while | 15 |
|
| 4 | [vb -s] for a while | 11 |
|
