| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [modal v] [pron] [adv] [verb] [adj] | 43 |
|
| 2 | [adv] could [pron] [adv] [verb] [adj] | 18 |
|
| 3 | how could [pron] [adv] [verb] [adj] | 17 |
|
| 4 | [Wh adv] could [pron] [adv] [verb] [adj] | 17 |
|
