| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do they [adv] [verb] | 14 |
|
| 2 | why do they [adv] [verb] | 14 |
|
| 3 | why do they [adv] [vb infin] | 14 |
|
| 4 | why do they [adv] [verb] | 12 |
|
| 5 | why do they always [verb] | 9 |
|
