| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do they [adv] [vb infin] | 17 |
|
| 2 | why do they [adv] [vb infin] | 12 |
|
| 3 | why do they always [vb infin] | 8 |
|
| 4 | why do they always [vb infin] | 8 |
|
| 5 | why do they not [vb infin] | 5 |
|
| 6 | why do they [not/n't] [vb infin] | 5 |
|
| 7 | why do they not [vb infin] | 5 |
|
