| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how could [pron] [adv] [verb] | 121 |
|
| 2 | how could [pron] [verb] [adj] | 120 |
|
| 3 | could [pron] [adv] [verb] [adj] | 58 |
|
| 4 | how [pron] [adv] [verb] [adj] | 17 |
|
