| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [vb past] [pron] [vb infin] | 1532 |
|
| 2 | [adv] [vb past] it [vb infin] | 401 |
|
| 3 | how [verb] it [vb infin] | 327 |
|
| 4 | [Wh adv] [vb past] it [vb infin] | 273 |
|
| 5 | how [vb past] it [verb] | 159 |
|
| 6 | how [vb past] it [vb infin] | 145 |
|
