| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why they have [verb] [adv] | 9 |
|
| 2 | why they have [vb pp] [adv] | 9 |
|
| 3 | why they have [verb] so | 7 |
|
| 4 | why they had [verb] [adv] | 5 |
|
