| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but how long [modal v] [pers pn] | 8 |
|
| 2 | but how long [vb mod] [pron] | 8 |
|
| 3 | but how long [modal v] [pron] | 8 |
|
| 4 | but how long [modal v] it | 5 |
|
| 5 | but how long [modal v] it | 5 |
|
