| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [vb -s] [pron] [vb infin] [pron] | 63 |
|
| 2 | how long [vb -s] [pron] [vb infin] | 44 |
|
| 3 | long [vb -s] [pron] [vb infin] [pron] | 10 |
|
